Mechanical waves, such as sound waves, travel fastest in what medium?

What is the net force acting on a falling 1-kg ball if it encounters 2 n of air resistance?

A projectile is defined as: (A) any object that is in flight. (B) any object that moves through air or space solely under the influence of gravity. (C) any object that applies an upward force to oppose gravity as it travels through air or space.

Which has the largest range in air 1. alpha particle, 2. beta particle 3. gamma rays 4. neutron

How Many Moons Does Each Planet Have?

Which would be the most reliable source of information about the weather

What would happen if a proton were added to the nucleus of the atom? (Check all that apply) It would become a different atom. It would add to the mass by 1. Its charge would increase by 1 The charge would be reduced by 1.

An unidentified compound contains only oxygen and hydrogen. is it organic?

The of a wave is the bending of a wave as it passes through one medium to another medium.

What's period formula

What is the weight of a 75kg. Mass?