When a moving object's velocity doubles, its kinetic energy increases by a factor of ______________

Fill in the blank(s) with correct word


4

Physics & Space Science

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Why are Uranus's rings darker in color (gray) than Saturn's or Jupiter's?

A. they do not have as much nuclear activity in them, so they do not produce as much light. B. they have a lot of carbon/soot-like material in them. C. there is more sunlight incident on Uranus's rings because of its greater distance from the Sun. D. there is less sunlight incident on Uranus's rings because of its smaller distance from the Sun. E. they are blocking more light from the stars behind them.

Physics & Space Science

An atom of "anti-hydrogen" would be made of

A) an anti-proton and a positron. B) a positron and an electron. C) a proton and a positron. D) a high-frequency photon and a low-frequency photon. E) an anti-proton and a muon.

Physics & Space Science

In the reaction how much energy is released or absorbed? The mass of 4He is 4.0026032 u, the mass of 9Be is 9.0121821 u, the mass of n is 1.0086649 u, and the mass of 12C is 12.0000000 u.

A. 4.21 MeV absorbed B. 4.21 MeV released C. 5.70 MeV absorbed D. 5.70 MeV released E. 6.34 MeV released

Physics & Space Science

The force exerted on the tires of a car that directly accelerate it along a road is exerted by the

A) engine. B) tires. C) air. D) road. E) none of the above

Physics & Space Science