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3 years ago

What is resistance to motion called?

Physics

1 answer:

Lunna [17]3 years ago

5 0

Answer:

it's friction

Explanation:

100% sure about that

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a student attaches a 0.5 kg object to a 0.7 m string and rotates the object around her head and parallel to the ground. how much

Marina CMI [18]

The object would have a centripetal acceleration a of

a = (12 m/s)² / (0.7 m) ≈ 205.714 m/s²

so that the required tension in the string would be

T = (0.5 kg) a ≈ 102.857 N ≈ 100 N

(rounding to 1 significant digit)

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3 years ago

Assume a comet is traveling at a constant velocity in deep space. Why would it speed up as it approaches our solar system?

allsm [11]

D
The comet has no net force acting on it, which results in constant velocity. Near our solar system, the influence of the gravitational forces due to the sun and the planets will increase as we know that gravitational force is:
F = GMm/r²
The net force will produce an acceleration on the comet, which will cause its velocity to change.

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3 years ago

What type of plate tectonic activity do you think is being shown in the picture below?

blondinia [14]

Answer:

Convergent boundaries,over time,a rift valley will form.

Explanation:

The picture shows 2 plates moving apart,and a shallow "valley"is also noticeable.

Mark me brainliest if I helped:D

3 0

3 years ago

In which of these states is the age of consent 18 years old?

Andreas93 [3]

Answer:

all the ones that say

Explanation:

18.....

4 0

3 years ago

5. Graph A below plots a race car's speed for 5 seconds. The car's rate of acceleration is 6 m/s^2

Georgia [21]

Answer:

The answer is below

Explanation:

We are to check if the statement is true of false. If it is false, we correct the statement.

Solution:

Acceleration is the time rate of change of velocity. It is the ratio of the change in velocity to the change in time. The acceleration can be gotten from a velocity time graph by finding the slope of the graph.

The x coordinate represent the time and the y coordinate velocity.

5) Graph A passes through the point (0, 0) and (4, 24). Therefore the acceleration (slope) is:

Acceleration = $\frac{24-0}{4-0}=6\ m/s^2$

This is correct.

6) Graph B is a straight line of 12 m/s. It passes through (0, 12) and (4, 12). Hence:

Acceleration = $\frac{12-12}{4-0}=0\ m/s^2$

This is false.

Therefore the acceleration of graph B is 0 m/s².

8 0

3 years ago

What is resistance to motion called?​

What is resistance to motion called?