I need help please .....

Answer:

if I'm not wrong, 0 Joules

Explanation:

If it is not being moved at all, then no work is being done

Answer:No

Explanation:There is no current technology which supports zero waste exhaust

Answer:

Diamagnetism.

Paramagnetism.

Ferromagnetism.

Ferrimagnetism.

Antiferromagnetism.

Explanation:

Magnetic materials are materials studied and used mainly for their magnetic properties. The magnetic response of a materials is largely determined by the magnetic dipole moment associated with the intrinsic angular momentum, or spin, of its electrons.

Answer:

materials studied and used mainly for their magnetic properties

Explanation:

Iron is an extremely well-known ferromagnetic metal.

Nickel is another popular magnetic metal with ferromagnetic properties.

also, Magnetism is the force exerted by magnets when they attract or repel each other. :)

Answer:

SI unit of density is kg/m^3  

Using unit conversion:

density = 19.3 * 1000 kg/m^3

Explanation:

I assume that you are asking for the density conversion to SI, sorry if this isn't what you were asking.

Answer:

B, convert the orbital period to seconds

Explanation:

edge 2o2o

In order to calculate the tangential speed of the satellite,  Enrique should do first converted the orbital period to seconds. The correct option is b.

Any item moving along a circular path has a linear component to its speed called tangential velocity. An object's velocity is always pointed tangentially when it travels in a circle at a distance r from the center. Tangential velocity is the name given to this.

Satellites can go over the Earth's North and South Poles, orbit the equator, or travel anywhere in between. They travel thousands of miles into space or only a few hundred miles above the surface of the Earth to perform their orbits. Enrique has given:

r=3.8 x 108 m

T= 18 days

Therefore, the correct option is b. convert the orbital period to seconds.

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Answer:

- colony: mass of single-type cells formed from single cell/small chain; pair or small cluster of cells; visible to naked eye

- colony forming unit: not visible to eye, original single cell or small chain/pair or small cluster of cells FROM WHICH colony forms

- Streaking plate: producing isolated colonies upon incubation using streak plate methods in agar

- Quadrant streak: used when sample is of high density

- Zigzag pattern: used when sample is of low density

a. The limit of resolution on this microscope is approximately 1254nm.

b. Two points that are 300nm apart will blur into one and cannot be distinguished as separate using this microscope.

The formula for the limit of resolution (d) is given by:

d = (0.61 × λ) / NA

where λ is the wavelength of light and NA is the numerical aperture.

a. To find the limit of resolution:

Given:

Wavelength of light (λ) = 520nm

Numerical aperture of the low-power objective lens (NA) = 0.25

Substituting these values into the formula, we have:

d = (0.61 × 520) / 0.25

d = 1254nm

Therefore, the limit of resolution on this microscope is approximately 1254nm.

b. To determine if two points 300nm apart can be distinguished:

Given:

Separation between the points (d) = 300nm

Since the separation between the points (300nm) is smaller than the limit of resolution (1254nm), the two points will blur into one and will not be distinguishable as separate entities.

In conclusion:

a. The limit of resolution on this microscope is approximately 1254nm.

b. Two points that are 300nm apart will blur into one and cannot be distinguished as separate using this microscope.

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Answer:

kinetic energy from wind turns blades on wind turbine → wind turbine blades turn generator → generator changes kinetic energy to electricity

Explanation:

The order of steps in the energy conversion during the production of electricity from wind turbine are as follows:

1. First of all, the wind transmits its kinetic energy to the turbine blades by striking the blade.

2. The turbine blades are connected to a generator. The kinetic energy of the turbine blades is utilized to turn the generator shaft.

3. The generator then converts the kinetic energy of the blades into electricity.

Hence, the correct option is:

kinetic energy from wind turns blades on wind turbine → wind turbine blades turn generator → generator changes kinetic energy to electricity

Answer:

B

explain: edge test

Answer:

1. Resistance

2. Store chmical energy and transfer it to electrical energy when a circuit is connected

3.Electric current

4. Series and parallel

5. can't see diagram

6. series

7. Parallel

8. can't not see diagram

Explanation:

Answer:

1.1 x 10⁻⁵m³

Explanation:

Given parameters:

Weight in air  = 11.29N

Weight in water  = 9.190N

Density of gold  = 19320kg/m³

Unknown:

Volume of the secret cavity = ?

Solution:

To solve this problem, we need to find the mass of the secret cavity.

Weight of the cavity  = Weight of sculpture in air  - Weight of sculpture in water

 Weight of cavity  = 11.29N  -  9.190N = 2.1N

 Weight  = mass x acceleration due to gravity

        Mass  =[tex]\frac{2.1}{9.8}[/tex]   = 0.2kg

So;

 Volume of substance can be determined from the density.

 Density  = [tex]\frac{mass}{volume}[/tex]  

   Volume  = [tex]\frac{mass}{density}[/tex]  

 Now insert the parameters and solve;

  Volume  = [tex]\frac{0.2}{19320}[/tex]   = 1.1 x 10⁻⁵m³

We are given:

initial velocity (u) = 0 m/s

time (t) = 4 seconds

acceleration (a) = 1.3 m/s²

displacement (s) = x m

Solving for the displacement:

from the second equation of motion

s = ut + 1/2 at²

replacing the variables with the given values

x = (0)(4) + 1/2 (1.3)(4)(4)

x = 1/2 * 20.8

x = 10.4 m

Answer:

Letter C Cuh

Explanation:

Answer:

C. self-perception

Explanation:

Cuh above me is right

Answer:

nucleus and endoplasmic reticulum. I'm pretty sure the mitochondria is in the cytoplasm too

Answer:

2.chloroplasts

3.endoplasmic reticulum

4.lysosomes

6.nucleus

7.vacuoles

Explanation:

These were the correct answers in my Cell Structure Assignment.

Answer:

The child represented by a star on the outside path.

Explanation:

Answer:

Gravity is pulling the box down. :)

Explanation:

Answer:

Frequency is the number of wavelengths, which is measured in hertz.

Explanation:

I have my ways ;)

The relationship between the terms “frequency,” “wavelength,” and “hertz" is that frequency is the number of wavelengths, which is measured in hertz.

The wavelength is described as the distance between two points on a wave having the same phase. It is also defined as the distance between two successive maxima or minima of the waveform.

The frequency of a wave is the measure of the number of wavelengths completed in one second and it is measured in Hertz (Hz).

The frequency is also the reciprocal of the time period of the wave, which is the time taken to complete one wavelength.

Therefore, frequency is the number of wavelengths, which is measured in hertz.

Learn more about frequency and wavelength:

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Answer:

Explanation:

The work done by an object can be found by using the formula

workdone = force × distance

From the question we have

workdone = 95 × 25

We have the final answer as

Hope this helps you

Potential energy is the energy possessed by a body because of its position relative to other bodies.

At both point A and C pendulum have the greatest potential energy.

Potential energy would be highest when the pendulum is at its highest point on either side of its motion where it is stationary for an instant.

At end point A and C , where all kinetic energy has been converted to potential energy because it is stationary for an instant at that points.

So, at points A and C , kinetic energy is zero because velocity is zero and all energy stored in form of potential energy.

Learn more:

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Answer:

for some reason, i got B. tried a and c

Explanation:

it might depend on which problem you get i guess.

Answer:

1 m/s²

Explanation:

The following data data were obtained from the question:

Net force (F) = 10 N

Initial mass (m1) = 5 Kg

Initial acceleration (a1) = 2 m/s²

Final mass (m2) = double the initial mass = 2 × 5 = 10 kg

Final acceleration (a2) =?

The final acceleration of the object can be obtained as follow:

Recall:

Force (F) = mass (m) × acceleration (a)

F = m × a

Keeping the force constant, we have

m1a1 = m2a2

With the above formula, we can obtain the final acceleration of the car as follow:

Initial mass (m1) = 5 Kg

Initial acceleration (a1) = 2 m/s²

Final mass (m2) = 10 kg

Final acceleration (a2) =?

m1a1 = m2a2

5 × 2 = 10 × a2

10 = 10 × a2

Divide both side by 10

a2 = 10 /10

a2 = 1 m/s²

Therefore, the final acceleration of the car will be 1 m/s²

Answer:

19.62 m/s

34.335 m/s

1.75 m

Explanation:

v = Final velocity

u = Initial velocity = 0

a = g = Acceleration due to gravity = [tex]9.81\ \text{m/s}^2[/tex]

t = Time taken = 2 s

From the equations of linear motion we have

[tex]v=u+at\\\Rightarrow v=0+9.81\times 2\\\Rightarrow v=19.62\ \text{m/s}[/tex]

The speed of the object after 2 seconds is 19.62 m/s

t = 3.5 s

[tex]v=u+at\\\Rightarrow v=0+9.81\times 3.5\\\Rightarrow v=34.335\ \text{m/s}[/tex]

The velocity of the object when it strikes the ground is 34.335 m/s.

[tex]v^2-u^2=2as\\\Rightarrow s=\dfrac{v^2-u^2}{2a}\\\Rightarrow s=\dfrac{34.335-0}{2\times 9.81}\\\Rightarrow s=1.75\ \text{m}[/tex]

THe height from which the object was dropped is 1.75 m.

Answer:

C. The robot fires the ball backward with a speed of 2 m/s.

Explanation:

The robot fires the ball backward with a speed of 2 m/s.

To find the correct statement among all the options, we need to know about the relative velocity.

Velocity is a relative physical quantity that depends on the chosen frame of reference.

Thus, we can conclude that the robot fires the ball backward with a speed of 2 m/s.

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Answer:

0 m/s.

Explanation:

When an object is shot up into the air the only force acting on it is gravity while neglecting wind. As the gravity is acting on the object it keeps decelerating till its velocity becomes 0 after which it can go no further. The maximum height of the object is at this point.

So, at its maximum height the velocity of the puck will be zero.

Answer:

i found: μk= 0.25

Explanation:

Newton's law is split into two components along

x and y , that, using our data, give:

30 − μkRn = 0

Rn = mg = 12⋅9.81 = 117.7 ≈ 118N

So: μk = 30/118 = 0.25

Please Mark Brilliant

Given :

Solenoid 2 has twice the radius and six times the number of turns per unit length as solenoid 1.

To Find :

The ratio of the magnetic field in the interior of 2 to that in the interior of 1.

Solution :

We know, magnetic field in the interior of a solenoid is given by :

[tex]B = \dfrac{\mu ni}{L}[/tex]

Let, length of solenoid 2 is L.

Therefore, length of solenoid 1 is 6L.

[tex]B_a=\dfrac{\mu (6n)i}{L}\\\\B_b = \dfrac{\mu n i}{L}[/tex]

Dividing [tex]B_a[/tex] by [tex]B_b[/tex] :

[tex]\dfrac{B_a}{B_b}=\dfrac{\dfrac{\mu (6n)i}{L}}{\dfrac{\mu n i}{L}}\\\\\dfrac{B_a}{B_b}=6[/tex]

Therefore, the correct answer is C. 6.

Answer: B. slow down as they lose energy

Answer:

Potential energy =mass* acceleration due to gravity * height

mass*acceleration due to gravity =weight

hence potential energy of the puppy= weight * height

=18*2

=36 joule

The assertion that ocean waves move on the water's surface is accurate. Therefore, choice A is right.

A wind wave, water wave, or tornado water wave is a surface wave that develops on a body of water's free surface as a result of the air flowing over the ocean's surface. The fetch is the distance at which two objects come into touch when facing the wind.

The wind is the most frequent source of waves. The friction between the wind and the surface of the water produces wind-driven waves, also known as surface waves. A wave crest is produced when wind continuously disturbs the water's surface in an ocean or lake.

The statements about ocean waves a true will be they travel on the surface of the water.

Thus, option A is correct.

More about the ocean waves link is given below.

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