A sample has a mass of 15g and a volume of 3ml calculate the density

What is the total current I flowing through a system with two resistors in parallel with resistances of 2Ω and 5Ω, and a battery with potential difference of 10V?

What is the momentum of a 0.1-kg mass moving with a speed of 5 m/s?

Explain why the speed of light is lower than 3.0 x 108 m/s as it goes through different media.

A kite stuck in a tree has ___ energy. a. kinetic b. thermal c. chemical d. potential

Which of the following tools is used to mark the spot where a hole is to be drilled in a piece of metal? a. hacksaw b. center punch c. screwdriver d. cold chisel

A wave with a frequency of 30 Hz has a wavelength of 40.5 m. How fast is the wave traveling?

A soccer ball is sitting in the middle of a soccer field during a game. When the referee blows his whistle, one of the players runs toward the ball and kicks it as hard as he can.

A body with v=20m/s changes its speed to 28m/s in 2sec. its acceleration will be

Charge: A piece of plastic has a net charge of + 2.00 μC. How many more protons than electrons does this piece of plastic have? (e = 1.60 * 10-19 C)

How much heat is needed to raise the temperature of 6g of water by 18oC?