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2 years ago

11

Which would best help a student determine the net force acting on a rollercoaster car as it moves from one point on its track to

another?

1 answer:

Lelu [443]2 years ago

6 0

Answer:

you can show them a vid

Explanation:

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A cloud of interstellar gas is rotating. Because the gravitational force pulls the gas particles together, the cloud shrinks, an

Fynjy0 [20]

Answer:

Greater than

Explanation:

Here, angular momentum is conserved.

$l_1\omega_1 =l_2\omega_2$

When the cloud shrinks under the right conditions, a star may be formed.

Thus, Diameter of clouds are much higher than a star.

Moment of inertia of cloud is greater than the star's inertial.

so, angular velocity of the star would be greater than angular velocity of the rotating gas.

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3 years ago

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Can the velocity of a body revese the direction when acceleration is constant?

TEA [102]

Answer:

Yes, the velocity of the object can reverse direction when its acceleration is constant. For example consider that the velocity of any object at any time t is given as: ... At At t = 0 sec, the magnitude of velocity is 2m/s and is moving in the forward direction i.e.v (t) = -2.

7 0

2 years ago

Aligned magnetic domains are only present in which of the following?

butalik [34]

Answer:

i think c

Explanation:

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3 years ago

What source of energy is responsible for the water cycle

Eduardwww [97]

Water? The sun. I DUNNO I FEEL BAD :(

7 0

2 years ago

There are two parts, answer both, please dont just say part 1 is the correct answer

nordsb [41]

Answer:

Im not sure

Explanation:

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3 years ago

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