A straight bar magnet is initially 4 cm long, with the north pole on the right and the south pole on the left. if you cut the magnet in half, the right half will

Which is the fastest way to send information using sound waves, light waves or water waves

Russ makes the diagram below to organize his notes about how Newton's first law describes objects at equilibrium.

In another solar system is planet Driff, which has 5 times the mass of the earth and also 5 times the radius. How does the gravitational acceleration on the surface of Driff compare to the gravita- tional acceleration on the surface of the earth? 1.

The smallest detail visible with ground-based solar telescopes is about 1 arc second. How large a region (in km) does this represent on the Sun? Hint: Use the small-angle formula: angular diameter (in arc seconds) 2.

Consider a high-speed bus colliding head-on with an innocent bug. The force of impact splatters the unfortunate bug over the windshield. According to Newton's 3rd Law, which is greater, the force on the bug or the force on the bus?

when two object P and Q are supplied with the same quantity of heat, the temperature change in P is observed to be twice that of Q. The mass of P is half that of Q. The ratio of the specific heat capacity of P to Q

Why do we say energy is the ability to do work

Explain the difference between mass and weight (in at least 2 sentences)

Is it possible for a nazi style government to exist in the modern world? Explain why or why not.

What is likely to happen if a balloon that was blown up at a low altitude is brought to a high altitude? Why would this occur?