The reference point at which vehicle appear to intersect the curb is 2.22km.
To ensure that every parallel park is successfully completed, it is crucial to employ a structured technique and to practice it until a level of proficiency is attained. However, contrary to popular belief, it need not be completed in a single seamless maneuver.
During the maneuver, it is acceptable to advance and make adjustments as long as you do so safely and keep an eye on your surroundings at all times.
Utilizing reference points, a structured technique is applied. Whatever method is used to parallel park, using reference points will help new drivers complete this maneuver.
You should slightly pass the car you plan to park behind. The front of this car is aligned with the center of your passenger-side front window in reference point.
[tex]Reference=\frac{\pi }{\sqrt{2} }[/tex]
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a 2.3 kg box, starting from rest, is pushed up a ramp by a 10 n force parallel to the ramp. the ramp is 2.0 m long and tilted at 17 ∘. the speed of the box at the top of the ramp is 0.80 m/s.
The force exerted on the system produces WD = 20J and K.E = 0.736J of work if a speed of a box that appears of ramp is 0.80 m/s.
What is force in science?At this point, describing a force as pushing or pulling is quite acceptable. There is no such thing as a force how an item "has in it" and "contains." A force is applied to one thing by another. The idea of the a force encompasses both living and non-living things.
Briefing:Mass m = 23kg
Force F = 10N
Length of the ramp = 2m
Velocity V = 0.8m/s
The force's efforts on the system that results in
WF = F × D = 10 × 2.0 = 20 J
The force's efforts on the system that results in, u = 0.
dKE = ½mv² = 0.5 × 2.3 × 0.8 × 0.8
= 0.736 J
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look at picture for question
Answer:
third one
Explanation:
x is always the least sum of a calculation as per as the chart it's nb-90
consider a wave passing through a single slit. what happens to the width of the central maximum of its diffraction pattern as the slit is made half as wide?
Therefore, if the slit width an is cut in half, the central maximum expands to double its original size.
What do waves in physics mean?A wave is an energetic disruption in a fluid that doesn't include any net particle motion. Elastic deformation, a change in pressure, an electrical or magnetic intensity, an electric potential, or a shift in temperature are a few examples.
A unit of wavelength?The SI system for wavelength is the meter, which is frequently abbreviated as m. Frequency is measured using multiples or subdivision of a meter. Notably, exponential ratios of 10 are employed when widths are a key aspect.
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The complete question is-
Consider a wave passing through a single slit. What happens to the width of the central maximum of its diffraction pattern as the slit is made half as wide?
Its width does not change.
It becomes one-half as wide.
It becomes twice as wide.
It becomes one-fourth as wide.
It becomes four times wider
6. In 1874, a swarm of locusts descended on Nebraska. The swarm's mass was estimated to be 25 × 10⁹ kg. If this swarm were split in half and the halves separated by 1.0 × 10³ km, what would the magnitude of the gravitational force between the halves be?
The change in gravitational potential energy stored in 16 Jule.
What is gravitational potential energy?Gravitational potential
In classical mechanics, of the gravitational potential at in a location is equal to the work per unit mass that's would be needed to Move an object to that locations from a fixed references location. It is analogous to the electric potential with the mass playing the role of charge.
Sol-As per the given question ∆PE = mgh
M= skg
g= 4m/s^2
∆h = 2m
∆PE = 2m×4m×2m
= 16 Joules.
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If there is no dark matter in the milky way galaxy, what is the best alternative explanation for the observations?.
Answer:
My own understanding of gravity is not correct for galaxy-size scales.
one important way astronomers can learn in some detail about what happens when galaxies collide is
One important way astronomers can learn in some detail about what happens when galaxies collide is to simulate galaxy collisions on a large computer and watch what the simulation predicts.
Simulating galaxy collisions on a large computer allows astronomers to observe how galaxies interact and evolve when they collide.
What can astronomers observe when galaxies collide?They can observe how stars, dust, and gas interact, how the shape of the galaxies change, how the distribution of stars changes, and how the total mass of the galaxies is affected.
They can also observe how the collision affects the gas and dust, and how they form new stars, as well as how subsequent collisions can cause the galaxies to merge completely. Simulations provide a powerful tool to gain insight into the complexities of galaxy collisions and to understand how galaxies form, evolve, and interact.
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For a hit in baseball, compare the force exerted by the bat on the ball to the force exerted by the ball on the bat. Why do bats sometimes break ?
Answer:
Bats sometimes break when the ball is hit with too much force, it could cause the ball to crack or even sometimes break the bat itself.
consider a long straight 1.70-amp current. what is the magnetic field strength, in microteslas, at a distance of 15.0 cm from the current?
At a distance of 15 cm, the magnetic field strength (measured in microteslas) is 0.68 T.
What is magnetic field?A magnetic field, a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. The magnetic field is the area in which a magnet produces its magnetic effects. We use the magnetic field as a tool to describe how the magnetic force is distributed in the vicinity and inside something magnetic in nature.
What causes a magnetic field and where it is find?Magnetism is created by moving electric charges. The tiniest units of matter are known as atoms. Each atom contains charged particles called electrons. The nucleus, or core, of an atom is made up of electrons that spin like tops.
The Earth's magnetic field (and surface magnetic field) has two poles, one close to the planet's geographic north pole (see Magnetic North Pole) and the other close to its geographic south pole. Together, these poles resemble a magnetic dipole (see Magnetic South Pole).
Briefing:Formula to calculate magnetic field around a wire:
B=(μ_° I)/2πd
B = The strength of magnetic field (Tesla)
μ₀ = permeability of free space = 4π × 10⁻⁷ T/mA
I = the current (Ampere)
π = 3.14
d = distance from the wire (m)
Given
I = 1.70 A
D=15.0 cm
B=(μ_° I)/2πd
B=(4π × 10⁻⁷×1.70)/2πd
B=(2 × 10⁻⁷×1.70)/d
B=(3.4× 10⁻⁷)/15
B=0.68×〖10〗^(-6)
B=0.68μT
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How much heat is removed from 60.0 g of steam at 100.0°C to change it to 60.0 g of water at 20.0°C?
Explanation:
this question we need to find the amount of heat they just removed from 60 g of steam At 100°C. To change too 60 g of water two 20 degrees Celsius. The specific heat of liquid water As 4.184 jewel program degree Celsius specific heat of steam As 1.84 joules per gram degree C. Heat off vaporization of water to is 40.67. Kill a jewel family. First this 60 g of 18 has converted to 60 g of water at 100°C. As the heat removed will be en indu L status and as the number of malls and Elysa heat of vaporization, that is 40.67. Hello Joel palmer so that each one that is the heat removed is equal to 60 indu 40.65 divided by 18. That is the given Mars by Moller mass gives the number of moles. That is by 16 to 40.65 by 18. Such that H one. The heat remote is obtained us 1 35.5 kg jule. Now the water is converted from 100°C to 20 degrees Celsius. The heat at a more can be calculated by mm indu C'e, hindu deity. That is M is the mass. C is the specific heat capacity. That is 4.18 Joule per kilogram and DT is the change in temperature that is 100 minus 20. That is 80°C says that he'd removed H2 is equal to .06 Hindu 4.18. For in due 100 minus 20 obtained us 20 kg jokes. Thus the total heat. Little mood will be H one Plus H two. That is 1 35.5 plus 20 And it has obtained as 155.5 kilo jule.
7) Calculate the KE. of a a) 2 kg trolley travelling at 1.5 m/s,
Answer:
Explanation:
KE=mv(v)/2
KE=2(1.5)(1,5)/2
KE=2.25
Important Formulas:
[tex]KE=.5mv^2[/tex]
__________________________________________________________
[tex]m=2kg[/tex] (measured in kg)
[tex]v=1.5m/s[/tex] (measured in meter per second)
[tex]KE=?[/tex] (measured in joules)
__________________________________________________________
[tex]KE=.5(2)(1.5)^2[/tex]
[tex]\fbox{KE = 2.25J}[/tex]
Which statement correctly describes the differences between positive and negative acceleration?
A. Positive acceleration describes a change in speed; negative acceleration describes no change in speed.
B. Positive acceleration describes no change in speed; negative acceleration describes a change in speed.
C. Positive acceleration describes an increase in speed; negative acceleration describes a decrease in speed.
D.Positive acceleration describes a decrease in speed; negative acceleration describes an increase in speed.
Positive acceleration describes an increase in speed; negative acceleration describes a decrease in speed. Hence option C is correct.
What is acceleration?Acceleration is defined as the speed at which an object's velocity changes over time. It is a vector quantity to accelerate. If a point or object travelling straight forward accelerates or decelerates, it is moving faster or slower. The equation a = v/t denotes acceleration (a), which is the change in velocity (v) over the change in time (t).
When the car accelerates positively, its speed rises. As the car slows down, its speed decreases. Negative acceleration occurs when a force causes a body's velocity to decrease. Therefore, the body's negative acceleration can also be referred to as its deceleration.
Thus, positive acceleration describes an increase in speed; negative acceleration describes a decrease in speed. Hence option C is correct.
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a 60 kg load is located at the very end of a uniform board of length l, which is supported one-quarter of the way from the end and is balanced. what is the mass of the board?
The Mass of the board is also 60kg when a 60 kg load is located at the very end of a uniform board of length l, which is supported one-quarter of the way from the end and is balanced.
What is the Mass of the board ?The Mass of the board is also 60kg because of a 60 kg load is located at the very end of a uniform board of length l which is also balanced and supported by one end.
Given:
Load is located at the very end of a uniform board= 60Kg
length of uniform board = L
Solution:Now to find the mass of the board do as follows;
⇒FN(l/4)-Mg(l/4)-60g(l/4)=0
⇒Mg(1/4)=60g(1/4)
⇒M(mass)=60kg
Hence , the Mass of the board is also 60kg .
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What happens when the pressure of a gas over solvent increases?
A.Less gas will dissolve in the solvent.
B. Less solvent will escape as a gas.
C. More solvent will escape as a gas.
D. More gas will dissolve in the solvent.
Answer:
D
Explanation:
More pressure pushes more gas into the solvent
think about the opposite when you open a soda and decrease the pressure....the gas comes out of solution....
Someone in a car going past you at the
speed of 45 m/s drops a small rock from a
height of 2.1 m.
How far from the point of the drop will the
rock hit the ground? The acceleration due to
gravity is 9.8 m/s Answer in units of m.
Answer:
The rock hits the ground 29.25 m far from the point of drop.
Explanation:
We know,
s = ut + 1/2 at²
to find the time taken for the rock to hit the ground, where u is 0 and a = g,
2.1 = 4.9t²
t = 0.65
The horizontal distance covered in this time:
distance = speed x time
d = 45 x 0.65
d = 29.25 m
in diamond, by how much, in degrees, do the critical angles for total internal reflection differ for red light compared to violet light?
The critical angles for red and violet light through diamond are 24.5° and 24.0°, respectively.
What is a critical angle, exactly?The incidence on incidence at which the refraction angles equals 90 degrees is known as that of the critical angle. The polarization di incident light and the light beam bends in the direction of normal when it enters a thicker environment from a similarly rarer medium.
An illustration of a critical angle.The critical angle is the angle of impact that provides a 90-degree angle of refraction. Keep in mind that an angle of impact value is how the angle of inclination is defined. For water-air borders and crown glass-water borders, the angle of inclination would be 48.6 degrees and 61.0 degrees, respectively.
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to sterilize a 50.0-g glass baby bottle, we must raise its temperature from to . how much heat transfer is required?
To sterilise a 50.0-g glass infant bottle, we must increase its heat from 22.0 to 95.0 degrees Celsius, or 3066 J of heat is transferred.
What is heat?Heat is the result of the movement of kinetic energy within a material or an item, or from form of energy to a material or an object. Electromagnetic energy can be transported using three different mechanisms: radiation, conduction, and convection. Conduction of heat through solids, convection of liquids and gases, and electromagnetic radiation (radiation).
What is the heat treatment?When a substance is subjected to a material-specific phase-change temperature, the material immediately undergoes a phase shift from a solid to a liquid. sources include solar energy, heat pumps, deep geothermal heat pumps, nat gas, lpg (LP), oil, coal, and wood.
Briefing:50.0 g (0.84 J/g C) of heat was transported (95 C - 22 C)
= 3066 J of heat transferred
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A charge of 3 C flows through a lamp and loses 12 J of electrical energy.
a) What is the potential difference across the lamp?
b) What happens to the 12 J of electrical energy?
Answer: yo your in high bro u need to learn this stuff if you want to past u fell me ? Explanation:
a 250 word formal essay Describe factors that influence one's food choices. Include explanations on how food choices reflect one's culture, ethnic backgrounds, and/or perhaps one's religious beliefs.
In writing an essay you must consider the structure of the essay, Hence, the structure of the essay should be considered;
The Introduction The body'The conclusionWhat are the factors that influence one's food choices?Generally, Individual factors, such as expertise, personal taste choice, emotions, hunger level, health status, special dietary requirements, ethnicity, and personal income, are some examples of these influences that make a contribution to an individual's food choices.
Other examples of these influences that contribute to a person's food choices include outside factors.
A person's religious beliefs may have a significant impact on the kinds of meals they purchase. For instance, individuals who follow the religion of Islam will not consume cattle or lamb that has not been killed using the halal procedure, but those who follow the religion of Jews will only consume items that have been certified as kosher.
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As altitude increases, the air pressure decreases. How do you think the lower pressure will affect the following?.
Answer:
A. Freezing point: Increase.
B. Melting point: Decrease
C. Boiling point: Decrease
Explanation:
As we go up in higher altitudes the air becomes on and less dense, hence the decrease in the water vapor content at such altitude leads to a decrease of boiling point.
Thus the air above is cool and much colder than at the ground surface. The vapor pressure is temperature-dependent and thus the melting point will decrease.
Jupiter, the largest planet in the solar system, has a mass 318 times that of Earth
and a volume that is 1323 times greater than Earth's. Calculate the magnitude of
the gravitational force exerted on a 50. 0 kg mass on Jupiter's surface.
The gravitational force exerted on a 50 kg mass on Jupiter's surface is 1.30×[tex]10^{3[/tex] N. Acceleration due to gravity on Jupiter is 2.23 times that of the earth.
Gravitational force is due to mass in an object. This is an attractional force with which all objects are attracting each other. All heavenly bodies have great mass. They attract each other and also if an object is reaching in their gravitational pull.
Force of gravity is calculated using the formula
F = G m1. m2/ [tex]r^{2}[/tex]
We are given mass of Jupiter and radius in terms of earth mass and radius.
volume of earth = 4/3 π[tex]r^{3[/tex]
Volume of Jupiter= 1323 × volume of earth
4/3 π[tex]R^{3[/tex] = 4/3 π[tex]r^{3[/tex] × 1323
R = r [tex]\sqrt[3]{1323}[/tex] =10.97 r
So, Gravity force on Jupiter = G 50 × 318 M/10.97 ×10.97[tex]r^{2}[/tex]
= 50 ×5.97×[tex]10^{24[/tex]÷ 10.97×10.97×6.37×[tex]10^{6[/tex]
after calculation we get the value 1.30×[tex]10^{3[/tex] N
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14) Calculate the magnitude and direction of the magnetic force on a particle of charge q= 13C that
is moving with a velocity of v= -20m/s x (to the left) in a magnetic field of B= 0.5 T 2
The magnitude and direction of the magnetic force on a particle of charge is - 2.21 in the opposite direction.
What is magnetic force?Magnetic force is defined as the electrically charged particles that are in motion and exhibit either attraction or repulsion. The interaction between moving and stationary charged particles is explained by the electromagnetic force, commonly known as the Lorentz force.
The magnitude and direction of the magnetic force can be calculated as
F = q v B sinθ
Given q = 13 C
v = - 20 m/s
B = 0.5 T²
F = 13 C x - 20 m/s x 0.5 T² sinθ
F = - 130 sinθ
Let θ is equal to 1
Then, F = 130 sin1
F = - 130 x 0.017
F = - 2.21
Thus, the magnitude and direction of the magnetic force on a particle of charge is - 2.21 in the opposite direction.
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define from which of Earth's systems are mineral resources obtained?
Sources of mineral resources are most commonly magma, sediments, or hydrothermal fluids.
Examples of mineral resources are iron, diamond, gold, silver, copper, aluminum, granite, marble, clay, salt, rare earths or fossil fuels.
What are mineral resources?
A mineral resource is a concentration of natural solid inorganic or fossilized organic matter, including metals, coal and minerals, in sufficient quantity and quality to have reasonable prospects for economic exploitation. This definition has a broader scope than mineral reserves that are likely to be economically recovered based on consideration of technical, economic, and legal concerns.
Mineral resources means minerals, naturally occurring solid inorganic substances, or naturally occurring solid fossilized organic substances (including base metals, precious metals, coal and industrial minerals), in or on the earth's crust, such Means concentrated or occurring in form and quantity and in its grade or quality. There are reasonable prospects for economic development. The location, quantity, grade, geological features and continuity of Mineral Resources are known, estimated or interpreted on the basis of specific geological evidence and knowledge.
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the diagram below shows a segment of DNA before and after erplication, which of the following could have occured as a result of this change in structure?
The change or mutation in a segment of DNA after replication may lead to changes in the genotype, the traits of the organism and the proteins (option i, ii and iii).
What is a genetic mutation?A genetic mutation is any change in the nucleotide bases of the genome of an organism that may be associated with modifications in the phenotypic traits or features of the organism if this change alters the expression of a given gene that produces a particular protein.
Mutations may be neutral when they don't show an apparent effect on the phenotype of an organism such as occur in mutations located in intergenic regions.
Therefore, with this data, we can see that a genetic mutation may alter the proteins produced by an organism which has a direct effect on the phenotype by altering the structures that it is able to synthesize.
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ou know the stall torque and no-load speed of a pm dc motor, what is the maximum power the motor can deliver?
If we know the stall torque and no load speed of a pm dc motor, the maximum power motor can deliver is P max = 1/2* Tstall * 1/2* ω(no load).
A mechanical device that produces stall torque has an output rotational speed of zero. Electric motors are capable of developing torque when stalled.
However, as the current flowing is at its maximum while an electric motor is halted, they are vulnerable to overheating and potential damage.
The no load speed is the speed when running at nominal voltage and zero load.
So, the maximum power motor can deliver is P max = 1/2* Tstall * 1/2* ω(no load).
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A 2400-kg car is moving at 20 m/s when it slams on the brakes and skids to a stop with a leftward acceleration
of 7 m/s/s.
The braking force that caused the car to skid to a stop is given by the equation:
Force = mass * acceleration
Plugging in the values for the mass of the car (2400 kg) and its acceleration (-7 m/s/s), we get:
Force = 2400 kg * (-7 m/s/s)
= -16800 N
This is the force that the brakes had to exert on the car in order to bring it to a stop. This force would have acted in the opposite direction to the car's motion, or to the right in this case.
What is the relationship between the magnetic force and the distance between the magnets?
The strength of the magnetic force is inversely proportional to the square of distance between the magnets. Thus, as the distance increases, force between the magnets decreases.
What is magnetic force?Magnetic force, is the force generated by magnetic flux lines arised from a magnetic field. A magnet have a south pole and north pole. There will be repulsive force between two like poles and attractive force between two unlike pole.
The force between two objects is always in inverse proportion with the distance and this is well explained by Coulomb's law of forces.
Thus, F ∝ 1/r² where, r is the distance.
Therefore, as the distance between two magnets increases the magnetic force between them decreases.
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a golf ball of mass 0.050 kg is at rest on the tee and has a velocity of 102 m/s immediately after being struck. if the club and ball were in contact for 0.94 ms what is the average force exerted on the ball?
A golf ball with a mass of 0.050 kg is at rest on the tee and accelerates to 102 m/s as soon as it is struck. The average force applied to the ball if the club and ball made contact for 0.94 ms is 6.3 kN.
Describe impulse.Impulse is a term used to describe how a net force—a specific type of "moving force"—affects an object. An impulsive force is a strong force that acts quickly to cause a finite change in momentum. Impulsive forces were conceptualized separated from regular forces throughout science history.
How is impulse calculated in physics?Force times time equals change in momentum for an impulse.
Briefing:F = mv/t
F = (0.050 kg)(102 m/s) / 0.81 ms × 10⁻³ = 6.3 kN
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A scientific law is something we can use to make a specific, concrete prediction. For example, the law of gravitation states that masses will attract each other, and you will find that this is always the case. However, it can also be used to make concrete statements about the properties of an object in the right conditions. For example, if a material were found that was not attracted to other objects with masses, we could say that.
A scientific law is something we can use to make a specific, concrete prediction. For example, the law of gravitation states that masses will attract each other, and you will find that this is always the case. However, it can also be used to make concrete statements about the properties of an object in the right conditions. For example, if a material were found that was not attracted to other objects with masses, we could say that the material has no mass (Option B).
What is a scientific law?A scientific law is a well sustained statement or model based on diverse hypotheses that were tested by using the scientific method, which additionally allows us to make predictions about certain questions raised by observing the natural world.
Scientific laws are based on experimentla and observational procedures that can be used to test all statements of the laws and thus also verified in their assumptions.
Therefore, with this data, we can see that scientific law is based on several well sustained assumptions that were tested by using the scientific method and thus conformed to make predictions about certain outcomes
Complete question:
Choose the right option. A scientific law is something we can use to make a specific, concrete prediction. For example, the law of gravitation states that masses will attract each other, and you will find that this is always the case. However, it can also be used to make concrete statements about the properties of an object in the right conditions. For example, if a material were found that was not attracted to other objects with masses, we could say that____
the material is charged.
the material has no mass.
the material must be floating.
the material has very little mass.
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According to ___ in the nec®, unused knockouts and other openings in electrical boxes and cabinets are required to be closed.
sound components are identified as coming from the same sound source. this means that the components are
Sound components are identified as coming from the same sound source. this means that the components are generated by the same physical object or process, and they tend to have similar characteristics such as frequency, timbre, and intensity.
What is Sound components about?These components are usually perceived as being part of a single sound or voice, rather than being perceived as separate sounds.
For example, if you are listening to a person speaking, the different sound components that make up their voice, such as their pitch, vowel sounds, and consonant sounds, are all generated by the same source (the person's vocal cords and mouth).
In some cases, sound components can be isolated and analyzed individually. For example, in audio engineering or music production, in order to shape the overall sound of a recording or performance.
Additionally, sound components can be synthesized or manipulated using digital audio software, allowing for the creation of new sounds or the modification of existing ones.
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