Which one of the following substances is a liquid fuel used in rocket engines?

A. Liquid oxygen

B. Potassium perchlorate

C. Codium nitrate

D. Ammonia

What is a hazardous serial killer? Use your brain to answer the question.

The number of neutrons in an atom equals to the? ...

2 kilogram bowling ball sits on top of a building that is 40 m the object has k e or g p e or both be sure to include the correct units

Seeds are formed in the of flowers, which become

If the forces acting upon an object are balanced (ie in equilibrium), then the object A. must not be moving (ie, at rest, v = 0 m/s) B. must be moving with a constant velocity (ie v# 0 m/s) C. must not be accelerating (i e, a = 0 m/s/s) D.

In a perfectly inelastic collision, the total momentum of the system ___ (i) ___ constant, while the total kinetic energy of the system___ (ii) ___constant.

What factors determine power

Superman, with a mass of 150kg, goes into outer space to push a 125000kg alien spaceship out of stationary orbit. He uses his super strength and pushes the ship away ay at speed of 150m/s. What is the speed of Superman after his big push

Most telephone cables are made of copper wire of either 24 or 26 gauge. If the resistance of 24-gauge wire is 137 Ω/mile and the resistance of 26-gauge wire is 220 Ω/mile, what is the ratio of the diameter of 24-gauge wire to that of 26-gauge wire?

Classify the sentences based on whether they describe temperature or thermal energy.