A magnetic hockey puck (0.40 kg) hits another hockey puck (0.40 kg) at rest and both travel together to the right at 8.0 m/s. How fast was the first hockey puck initially moving?

During the developing stage of a thunderstorm, air moves upwards downwards towards poles towards equator

Does cannibalism still exist

Atoms form chemical bonds using: A. Electrons in the innermost energy level B. electrons in the outermost energy levels D. Protons and electrons

Wich of the following is a contact force? a. - friction b.-magnetism c.-gravity d.-electricity

When you take a break from driving, what is NOT a good thing to do? A. Stretch your legs B. Breathe fresh air C. Drink and eat D. Drink some alcohol

If you drop a silver dollar off a building and it hits the ground in 10 seconds, how fast was the coin going just before it hit?

What is the weight of an with a mass of 32kg

The index of refraction of silicate flint glass for red light is 1.620 and for violet light is 1.660. A beam of white light in this glass strikes the glass-air interface at a 25.50∘ angle of incidence and refracts out into the air.

The locations of the major pressure and wind systems on the earth:

Which statements correctly describe the properties of heat? Select all that apply. Heat is an essential component of life on Earth. Heat is energy that flows from one object to another. Heat flows from a hotter object to a colder one.