In a physics lab a 90 kg student runs up a 1.5 meter tall flight of stairs in 3.0 seconds. The students power rating is approximately ___W

Does entropy increase during sublimation

Three balls are in water. Ball 1 floats, with half of it exposed above the water level. Ball 2, with a density less than the density of water is held below the surface by a cord anchored to the bottom of the container, so that it is fully submerged.

Which of the following describes an object in static equilibrium? A. A platypus lies motionless on the sand. B. A tuna speeds up from 2 m/s to 3 m/s C. A dolphin jumps out of the water D. A zebra shark swims at a constant speed of 8 m/s

What are x rays called that have undergone a change in direction after interactions with atoms?

Josh is climbing up a steep 24 ∘ slope, moving at a steady 0.95 m/s along the ground in how many meters of elevation does he gain in one minute of this climb?

If a bar magnet is broken into two pieces, each of the resulting pieces

Two passengers leave the airport at Kansas City, Missouri. One flies to Los Angeles, California, in 3.5 hr and the other flies in the opposite direction to New York City in 3.5 hr.

What is the term for the basic unit of electric current? The basic unit of electric current is the.

When a sailboat overtakes a powerboat, which vessel is the stand-on vessel?

Both matter and energy can eneter and exit which of the following systems? A. open only B. both open and closed C. isolated only D. both closed and isolated