Who studied how electromagnetic waves are formed?

Which object will have more inertia a 100kg rock a 5kg book a 60kg person or a 2000kg car

Identify several factors in the environment that can affect physical fitness levels.

What charge are electrons

Julia rides her horse 12 miles in 45 minutes. What is her average speed in mi/min? Show Your Work.

You are trying to find the impulse of an object through experimentation

Describe and apply Newton's Three Laws

If you do 1000j of work on a system and remove 500j of heat from it, what is the change in its internal energy

Two children stretch a jump rope between them and send wave pulses back and forth on it. The rope is 4.5 m long, its mass is 0.42 kg, and the force exerted on it by the children is 71 N.

An object will only change its motion if a force is directly applied to it. is this a true statement?

Janice has just measured the density of an object. Which value is possible? (Density: D = )