What is the mass number of atoms with 5 protons and 7 neutrons?

Calculate the wave length of a water wave with a speed of 20 m/s and a frequency of 2.5 Hz A. 2 B. 5 C. 8 D. 12

A force of 45.0 n accelerates a 5.0-kg block at 5.6 m/s2 along a horizontal surface what is the coefficient of friction?

What are some real-world examples that illustrate the relationship between kinetic energy and potential energy?

A substance that is formed in a chemical reaction is a A product B reactant C solvent D Mixture

The longest and heaviest bone in the body is the

What techniques allow us to identify the presence of different elements?

A small piece of dust of mass m = 4.1 µg travels through an electric air cleaner in which the electric field is 466 N/C. The electric force on the dust particle is equal to the weight of the particle.

a race car driver must average 203 km/h over the course of a time trial lasting ten laps. If the first nine laps were done at 199.0 km/h what average speed must be maintained for the last lap?

If a person paddling only on the left side of a boat. In which direction will the boat go?

What is the density of cylindrical (coin) object if it has a mass of 0.69 kg, and a radius of 0.03 m, along with a thickness of 0.003 m?