A balloon-powered car rolls across the floor at a speed of 0.711 m/s. How long does it take to cover 8.25 m?

Answers

Answer 1

Answer:

11.6 seconds

Explanation:

8.25/0.711=11.6


Related Questions

I WILL GIVE BRAIN LIST PLS HELP

Answers

Answer:

C is corret answer okay

What do psychologists used to assist them in diagnosing abnormal behavior?

Answers

Ok so it usually includes the evaluation of symptom and disorder severity, patterns of symptoms over time number, frequency, and duration of episodes, and the patient's strengths and weaknesses.

A rock fell of the edge of a cliff and encountered a displacement of 50m. The final vertical velocity of the rock was 10m/s. Find the time the rock was in the air, the horizontal velocity when the rock left the cliff and the vertical displacement the rock had.

Answers

Answer:

A.) 3.19s

B.) 0

C.) 55.1

Explanation:

Given that a rock fell of the edge of a cliff and encountered a displacement of 50m. The final vertical velocity of the rock was 10m/s.

To Find the

A.) time the rock was in the air,

Given that

h = 50m,

initial velocity U = 0,

acceleration due to gravity g =9.8m/s^2

Using second equation of motion:

h = Ut + 1/2gt^2

Substitute all the parameters into the equation

50 = 1/2 × 9.8 × t^2

100 = 9.8t^2

t^2 = 100/9.8

t^2 = 10.2

t = 3.19s

B.) the horizontal velocity when the rock left the cliff

The horizontal velocity is equal to zero since horizontal acceleration is zero.

C.) and the vertical displacement the rock had.

Using the third equation of motion.

V^2 = U^2 + 2gH

Where U = 0

V = 10m/s

Substitute all the parameters into the formula

10^2 = 0 + 2 × 9.8 × H

100 = 19.6H

H = 100/19.6

H = 5.1

The vertical displacement = 50 + 5.1

The vertical displacement = 55.1 m

You are driving a metric car that has a speedometer that displays in meters per second. When you look down at your speedometer, you see that it reads 23 m/s, then 7.4 s later you look down and it reads 13 m/s. What is your average acceleration over those 7.4 s?

Answers

ahahhabsba babababba ab

Very few people have a definite and pure somatotype. True False​

Answers

the answer is true (for 20 characters long)

Answer: True

Explanation: I got it right on my test :)

n.
What is longitudinal wave?
0.
Define transverse wave.

Answers

Hey There!_____________________________________Answer:----------------------------------------------------------------------Longitudinal Wave:

Longitudinal waves are those waves which move in the same direction as of the particle of the medium. That means, The Particles of the medium move forward and backward just like the Wave move forward so they propagate in the same direction.

Example:

The Sound wave is the example of the longitudinal wave as it propagates in  the same direction as the particle do.

_____________________________________Transverse Wave:

Transverse wave are those waves which propagate in the perpendicular direction as of the particle of the medium. That means, The particle moves up and down but the wave propagate in forward direction. So they dont move in similar direction but perpendicular.

Example:

Water wave is the perfect example of the transverse wave as you can see that water particles form crest(Up the midline) and trough(down the midline) i.e. upward and downward movement but the water actually moves forward in direction.

_____________________________________I have attached the picture below!_____________________________________Best Regards,'Borz'

Two mugs are on a table. What would you need to know in order to determine which mug contains the most thermal energy?

Answers

change in thermal energy = mass × specific heat capacity × change in temperature.
Answer: you would need to know the mass of each mug

What was the orginal purpose of the constitutional convention and what conclusion did they quickly came to?

Answers

the original purpose was to reform the articles of the confederation and fix them but they decided to completely scrap it and write the constitution we have in place today

a computer simulation is an example of what?
a hypothesis
a scientific law
a scientific theory
a model

Answers

A computer simulation is an example of a Model.

A model can be a virtual OR physical representation of an object, movement, etc. A model is used to have a visual view of an item.

Hope this helps and please mark brainliest!

A 12 volt battery is connected to two resistors in series. The first resistor has a resitance value of 5 Ohms and the current through the circuit is 1.5 Amps. What is the value of the second resistor?

a
9 Ohms
b
1.5 Ohms
c
5 Ohms
d
3 Ohms

Answers

Answer:

D) 3 ohms

Explanation:

According to one law

V = IR

Where V = voltage or potential difference

I =current

R =resistance

Making R the subject

R= V/I

R= 12/1.5

R=8 ohms

Sum of resistance of resistors in series equals the total resistance

R(total) = R1+ R2

8 =5+ R2

8-5=R2

3=R2

A 1.00 kg sphere M, suspended by a string from point P, is lifted to a height h. The sphere is released and passes through the lowest point in its swing at a speed of 10.0 meters per second. [Neglect friction.]
a. Calculate the height from which the sphere was released. [Show all work including equation and substitution with units]

b. Compared to the sphere’s speed through the lowest point of its swing when released from h, the sphere’s speed through the lowest point when released from 2h would be

Answers

Answer:

(a) h = 5.1 m

(b) v = 14.13 m/s

Explanation:

(a)

We will use the law of conservation of energy. For this situation it states that:

Loss in Potential Energy of Sphere = Gain in Kinetic Energy of the Sphere

mgh = (1/2)mv²

h = v²/2g   --------------- equation (1)

where,

h = height = ?

v = speed at lowest point = 10 m/s

g = 9.8 m/s²

Therefore,

h = (10 m/s)²/(2)(9.8 m/s²)

h = 5.1 m

(b)

using the equation (1)

h = v²/2g

v = √2gh

where,

v = velocity = ?

g = 9.8 m/s²

h = height = 2(5.1 m) = 10.2 m

Therefore,

v = √[2(9.8 m/s²)(10.2 m)]

v = 14.13 m/s

The height from which the sphere was released is 5.1 m

When the height is doubled, the speed of the sphere becomes 14.14 m/s.

The given parameters:

Mass of the sphere, m = 1.0 kgSpeed of the sphere, v = 10 m/s

The height from which the sphere was released is calculated as follows;

[tex]P.E = K.E\\\\mgh = \frac{1}{2}mv^2\\\\gh = \frac{1}{2}v^2\\\\h = \frac{v^2}{2g}\\\\h = \frac{(10)^2}{2(9.8)} \\\\h = 5.1 \ m[/tex]

When the height is doubled, the speed of the sphere becomes;

[tex]h = \frac{v^2}{2g} \\\\v^2 = 2gh\\\\v = \sqrt{2gh} \\\\v = \sqrt{2 \times 9.8 \times (2 \times 5.1)} \\\\v = 14.14 \ m/s[/tex]

Learn more about  conservation of mechanical energy here: https://brainly.com/question/6852965

Two kids are swinging on a swing set. If one kid is larger than the other, how would it affect their kinetic and potential energy? If they both jumped off the swing, who would fly farther? Why?

Answers

Answer:

Yes it would affect the energy. the one who is smaller would fly

Explanation:

the larger kid is carring all the weight so he would have more energy on his side and the smaller kid would fly bc he lighter and has less energy on his side.

Hope this helps.

Scientists observed a rock stratum with fossils. If mollusks

Answers

Answer:

scientist observed a rock stratum with fossils.if mollusks evolved before arthropod where will there fossils be found

this for my previous question.. im so sorry

Answers

Answer:

the answer for the question is C

Kara is pushing a shopping cart to the right. The gravitational force is acting ________.
A.) upward
B.) downward
C.) to the left
D.) to the right

Answers

Answer: Gravitational force should be downwards as gravity pulls downwards.

Explanation: Dont quote me on that

Write a paragraph about getting to Mars using the dot points

Answers

Please mark Brainliest ....

A ball is thrown with initial velocity 20 meter per second by making an angle 30 degree with a horizontal then find time of flight.

Answers

Answer:

[tex]\huge\boxed{\sf T = 2.04\ secs}[/tex]

Explanation:

Given Data:

Initial Velocity = [tex]\sf V_{i}[/tex] = 20 m/s

Angle = [tex]\sf \theta[/tex] = 30°

Acceleration due to gravity = g = 9.8 m/s²

Required:

Time of flight = T = ?

Formula:

[tex]\sf T = \frac{2\ V_{i}\ sin\theta}{g}[/tex]

Solution:

Putting values in the above formula

T = 2(20)sin 30 / 9.8

T = 40 (0.5) / 9.8

T = 20 / 9.8

T = 2.04 secs

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AnonymousHelper1807

pls help !!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

B. Identifying the types of data to be gathered

Explanation:

Identifying the types of data to be gathered is one of the part of designing a set of experimental procedure.

An experimental procedure is a methodical process that must be followed in order to attain the goal of the experiment.

As with most experiments, data is collected for further analysis and interpretation. The choice of way of collecting data and the type of data to be collected is very important when designing an experiment.

Why is the process of photosynthesis important to food webs?

Answers

Answer:

to know what that specif animal or thing does in the food chain

Explanation:

the flow of nutrients through an ecosystem is cyclic​

Answers

Answer:

Yes

Explanation:

The flow of nutrients through ecosystem is cyclic as the nutrients move from one trophic level to another trophic level all the way up and then back down.

Out line two application of reflactive index​

Answers

Explanation:

In addition, they are used as light emitting diodes, optical waveguides, optical filters, piezoelectric devices, multimeter sensors, electron-beam pumped lasers, spintronics, quantum computing, electrophotography and photo-catalysis.

HURRRRRRRYYYYYYYYY
Why can the volume of a sample of plasma change when the substance is moved from one container to another?

A. Plasma is made of charged ions and electrons, so they interact differently in different places.
B. Plasma can have lots of space between its particles, so it naturally expands and compresses.
C. Plasma is made of neutral atoms that can split into separate ions and electrons when placed in a new container.
D. Plasma can change between a rigid shape and a free-moving form, so it will have different volumes in different containers.

Answers

The volume of a sample of plasma change when the substance is moved from one container to another because plasma can have lots of space between its particles, so it naturally expands and compresses.

Plasma

Plasma is one of the four states of matter.Plasma refers to a gas that exists as ions or in the ionized state.

When sufficient energy has been supplied to the gas, the electrons of the gas have enough energy to escape from their atoms or molecules and the atoms then exist as ions.

Plasma contains ions and electrons that are free to.move around easily.

Matter in the plasma state do not have constant volume or shape, rather it has variable volume and shape. Plasma is the most common form of visible matter in the universe.

Examples of matter that exist in the plasma state include lightning, sparks, the sun, etc

Therefore, the volume of a sample of plasma change when the substance is moved from one container to another because plasma can have lots of space between its particles, so it naturally expands and compresses.

Learn more about plasma and states of matter at: https://brainly.com/question/11175823

Answer: Plasma can have lots of space between its particles, so it naturally expands and compresses.

Explanation:

Right on edge

1. What are the characteristics of winds?
2. The wind vane should be located well above the ground. Why?
3. Describe cup anemometers

Answers

Answer:

wind has two important things that is direction and speed.

Sophia was studying with Maalik about the layers of the Earth. They were given several different statements about the layers. Which statement about the layers would they identify as correct?
A-The outer core is less than 70 km in thickness.
B-The crust assists in forming Earth’s magnetic field.
C-The mantle is denser than the crust.
D- Pressure increases when moving from the core to the crust.

Answers

The statement about the layers of the Earth that both Sophia and Malik would identify as correct is: C. The mantle is denser than the crust.

Earth is one of the planets that rotates on its axis and revolves around the Sun. Also, planet Earth is the only planet known to harbor and support life.

Based on astronomical records, planet Earth comprises four (4) distinct layers starting at the center and these include:

The inner coreThe outer coreThe mantleThe crust

The mantle has a density of 4.5 [tex]g/cm^3[/tex] while the crust has a density of 2.6 [tex]g/cm^3[/tex] because temperature and pressure within planet Earth increases with depth.

In conclusion, the mantle is denser than the crust since it is made up of metals rather than solid rocks and minerals which are found within the crust.

Read more: https://brainly.com/question/11288481

Answer:

c

Explanation:

a student compared two samples of matter. he recorded the results in the chart. Sample A: Appearance: shiny and yellow. Sample B: Appearance: Dull and yellow. Which property do the two samples have in common? A. volume. B. color

Answers

Answer:

The answer are B

Explanation:the two samples haves yellow color :)

Answer:

B or 2

Explanation:

both of the samples contain a yellow color.

what are some examples of focus

Answers

Some examples of focusing is a person studying, even a camera focusing on an object!

Which statement places events during the Space Race in the correct order from the earliest to the most recent?

NASA was established, US satellite Explorer launched, first man walked on the moon, first man orbited the Earth

first man walked on the moon, first man orbited the Earth, NASA was established, US satellite Explorer launched

US satellite Explorer launched, NASA was established, first man orbited the Earth, first man walked on the moon

first man orbited the Earth, first man walked on the moon, US satellite Explorer launched, NASA was established

Answers

Answer: The correct statement order from the earliest to the most recent is (US satellite Explorer launched, NASA was established, first man orbited the Earth, first man walked on the moon.)

Explanation:

The United States first Satellite was launched in the date of February 1, 1958. It was given the name 'Explorer 1'. It was a cosmic ray detector which was constructed to measure the radiation environment in earth orbit.

NASA (National Aeronautics and Space Administration) was established in the year 1958 on the first day of October by United States of America. This was created as a response to the Soviet Union over thier first Satellite launch.

First man orbited the earth in the year 1961 on April 12. This was achieved by a Soviet Cosmonaut Yuri Alekseyevich Gagarin.

The first human on the moon is Neil Armstrong through the spacecrafts called Apollo's 11. This event occurred on 20 July 1969

The correct order from the earliest to the most recent is US satellite Explorer launched, NASA was established, first man orbited the Earth, first man walked on the moon.

The given problem recalls the historical event of Space race of US. The United States first Satellite was launched in the date of February 1, 1958. It was given the name 'Explorer 1'. It was a cosmic ray detector which was constructed to measure the radiation environment in earth orbit.

NASA (National Aeronautics and Space Administration) was established in the year 1958 on the first day of October by United States of America. This was created as a response to the Soviet Union over their first Satellite launch. First man orbited the earth in the year 1961 on April 12. This was achieved by a Soviet Cosmonaut Yuri Alekseyevich Gagarin. The first human on the moon is Neil Armstrong through the spacecrafts called Apollo's 11. This event occurred on 20 July 1969.

Thus, we can conclude that the correct order of US space race is, US satellite Explorer launched, NASA was established, first man orbited the Earth, first man walked on the moon.

Learn more about the Space mission of US here:

https://brainly.com/question/10321680

2. If a car accelerates uniformly at a rate of
4.0 m/s2, how long will it take to reach a speed of 20
m/s, starting from rest?

Answers

Answer:

The car will take 5 seconds

Explanation:

Constant Acceleration Motion

It's a type of motion in which the velocity of an object changes uniformly in time.

If the object starts from a speed vo during a time t with an acceleration a, then its final speed is:

[tex]v_f=v_o+at[/tex]

The car is accelerating at a rate of a= 4~m/s^2 and reaches a speed of vf=20 m/s starting from rest (vo=0).

From the equation shown above, we solve for t:

[tex]\displaystyle t=\frac{v_f-v_o}{a}[/tex]

[tex]\displaystyle t=\frac{20-0}{4}[/tex]

[tex]\displaystyle t=\frac{20}{4}[/tex]

t = 5 seconds

The car will take 5 seconds

a jet can travel at 400 minutes per second how far will it travel at this speed in 3 seconds​

Answers

400 * 3 = 1200
A jet can travel 1200 minutes for 3 seconds

Answer:

1200

Explanation:

D. 1
1.212.52
-2
12
12

Answers

Answer:

what?

Explanation:

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