What is the most dense crust

An object moving with a speed of 35 meters per second has a kinetic energy of 1500 joules. What is the mass of the object?

Which of the following would create voltage in a coil of wire? a. Spinning a coil of wire in a magnetic field b. Spinning a magnet in coil of wire c. Sliding a magnet back and forth in a coil of wire D. All of The Above

Assignment: Wave Introduction 1. A note on a piano vibrates 262 times in 5 seconds. Calculate the period of the wave.

If a wave has a wavelength of 9 meters and a period of 0.006, what is the velocity of the wave? A. 1,285 m/s B. 1,200 m/s C. 1,800 m/s D. 1,500 m/s

A student wants to build a circuit with four light bulbs and one bell. A student wants to place a switch in the circuit so that only one light will still be on and the bell will still ring when the switch is opened

Tarzan runs at 6 m/s and grabs a vertical vine (negligible mass) 4.1 m long which is tied to a tree at the top. Tarzan swings up. Determine the maximum height Tarzan will swing up and the angle the vine makes respect to vertical.

What is the safest place to be amid the coronavirus?

What is the change in internal energy if 60 J of heat are added to a system and the system does 40 J of work on its surroundings? Use AU = Q-W.

A 35-N bucket of water is lifted vertically 3.0 m and then returned to its original position. How much work did gravity do on the bucket during this process?

You then decide to throw another disc to your friend in the tree for fun. If you throw the disc at a speed of 10 m/s and your friend catches it 5.0 m above you, what was the speed of the disc just before your friend catches it