A bullet moving at 500 m/s has a kinetic energy of 2500 J and a potential energy of 0.5 J at a certain moment. What is the bullets mass and how high above the ground is it at the moment

What is trapezord mean

What is the mechanical advantage supplied by a 1000 N object lifted using 250 N of force

A stream begins at an elevation of 1000 feet and flows a distance of 200 miles to the ocean. what is the average gradient?

Bird bones have air pockets in them to reduce their weight. This also gives them an average density significantly less than that of the bones of other animals.

A bee flies at a constant rate of 5 m s until it notices a flower. It then comes to rest in 5 seconds. Find the acceleration of the bee if a=? v? t. A) - 5 m s2 B) - 1 m s2 C) 1 m s2 D) 5 m s2

Suppose that, while lying on a beach near the equator of a far-off planet watching the sun set over a calm ocean, you start a stopwatch just as the top of the sun disappears. you then stand, elevating your eyes by a height h = 1.

A night lamp uses a 30 W bulb. If it is left on continuously for 8 hours, how much energy will it use?

If a drag racer wins the final round of her race by going an average speed of 92.5 m/s in 4.5 seconds, what distance did she cover

An airplane flies due west (i. e. in the-X direction) between two airports. For one-quarter of the distance it travels at 650.0 km/h and the rest at 750.0 km/h. What is the average velocity (not speed) of the airplane?

1. The "Opportunity" rover that just landed on Mars transmitted music back to Earth. If the distance to Earth at the time was 9x107 km and radio waves (a kind of "light") travel with a speed of 3x108 m/s, how long did it take for the signal to reach