In a vacuum, radio waves, visible light, and x-rays all have the same A. Frequency
B. Energy
C. Speed
D. Wavelength

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

What do elements in a family tend to share. a.) similar periods b.) similar groups c.) similar atomic symbols d.) similar chemical properties and characteristics

If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?