The insulation in an old house is able to hold in 12,000 J of the 36,000 J that were used to heat it up. How energy efficient is this insulation?

An atom with 9 protons and 8 electrons is what kind of atom?

Sun is not a planet. why?.

Which equation is used to calculate the magnetic force on a charge moving in a magnetic field? F = |q|vBcos F = |q|vBsin F = |q|Bcos F = |q|Bsin

Evolution occurs at which level? Community Population Species Individuals organism

The material that is most difficult to recycle is

Brittany stands at rest on a skateboard. the combined mass of brittany and the skateboard is 62 kg. dave tosses a 3.7-kg pumpkin to brittany, and when she catches it, she and the skateboard begin to roll backward with a speed of 0.16 m/s.

The maximum restoring force that can be applied to the disk without breaking it is 40000 n. what is the maximum oscillation amplitude that won't rupture the disk

Which is a vector quantity speed or velocity

With a naked eye your are unlikely to see a "blank" in your lifetime. A - Comet. B - Shooting Star. C - Meteor. D - Planet.

If there is a current of 15A in a circuit for 5 minutes, what quantity of electric charge flow through the circuit?