Which of these is not a source of the shock waves that lead to protostars?

What does work in science mean?

The other tower WTC2 is 1,362 feet tall, what is it's height in meters?

An infinitely long cylindrical insulating shell of inner radius a and outer radius b has a uniform volume charge density p. Determine the electric field everywhere.

Is water wet? Give reasoning and (if possible) examples.

Which machine has an IMA less than 1 A: rake B: a crowbar C: a bottle opener D: a shovel

What are two ways that convention currents in the ocean distribute the suns energy?

An astronaut on a strange planet has a mass of 80 kg and a weight of 240 n. what is the value of the acceleration due to gravity on this planet?

A 165g arrow is shot straight up into the air with a speed of 16m/s reaches a maximum height of 12.0612m. a. Find the initial kinetic energy. The acceleration of gravity is 9.8m/s^2. b. Find the potential energy at its highest position. c.

The amount of force needed to keep a 0.1kg basketball moving at a constant speed of 6 m/s on frictionless ice is ___ N

What three forms of kinetic energy can a polyatomic molecule have?