A constant net torque is applied to an object. Which one of the following will not be constant?

1.angular acceleration
2.angular velocity
3.moment of inertia
4.center of gravity


2

Physics & Space Science

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The electric field associated with a uniformly charged hollow metallic sphere is the greatest at:

a. the center of the sphere. b. the sphere's inner surface. c. infinity. d. the sphere's outer surface.

Physics & Space Science

The planet Neptune is blue in color. How would you expect the spectrum of visible light from Neptune to be different from the visible-light spectrum of the Sun?

A) The two spectra would have similar shapes, except Neptune's spectrum would be missing a big chunk of the red light that is present in the Sun's spectrum. B) The two spectra would have similar shapes, except Neptune's spectrum would be missing a big chunk of the blue light that is present in the Sun's spectrum. C) Neptune's spectrum would peak at a much longer wavelength than the Sun's spectrum. D) There is no way to predict the answer to this question, since planets and stars are made of such different things.

Physics & Space Science

Tidal locking is what makes the Moon rotate about its own axis at the same rate that it revolves around Earth

Using as a model of a moon two identical masses of mass m connected by a light rod, explain how the forces on the masses would tend to keep this satellite in a fixed orientation.

Physics & Space Science

Inertia is defined as a

A) force. B) property of matter. C) change in motion. D) none of the above

Physics & Space Science