Who showed that our universe is heliocentric - the planets of the solar system revolves around the sun?

Which of the following prefixes represents the biggest number? a. kilo b. hector c. centi d. milli

The acceleration produced by a net force on an object is

Neon (Ne) is very unreactive. Which of these elements most likely shares this property?

When white light goes through a prism, it undergoes refraction and the different colors of white light are separated. This occurs because---.

If a bar magnet is cut 3 times resulting in 4 smaller magnet pieces, then each new magnet will have * A. only a N pole B. only a S pole C. both a N and S pole D. neither a N nor a S pole

What are the characteristics of prokaryotes? A.) A prokaryote lacks a well-defined nucleus. B.) A prokaryote cannot perform basic life functions. C.) A prokaryote lacks cell organelles. D.) A prokaryote is larger than a eukaryote.

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?