If you were trying to build a sound proof room, which of the following materials would you choose in order to absorb the most sound, based on the coefficient of absorption for each material

Cyclist competes in a one-lap race around a flat, circular course of radius 140 m. starting from rest and speeding up at a constant rate throughout the race, the cyclist covers the entire course in 60 s.

The cross section area of a hole is 725cm^2. Given that the area of a circle is A=3.14r^2, find the radius of the hole.

A wire of length 26.0 cm carrying a current of 6.50 mA is to be formed into a circular coil and placed in a uniform magnetic field B of magnitude 7.21 mT.

a 205 kg fridge rest on a floor with Us = 0.330. how much forces does it take to set the fridge in motion?

The one factor in an experiment that changes is what

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