Why do metals conduct electricity

What is the horizontal acceleration of a ball that is launched horizontally with a velocity of 5.6 m/s? a.-9.8 m/s2 b. 0 m/s2 c. 5.6 m/s2 d. 9.8 m/s2

On a warm day in April, Tina jumped into the swimming pool. To her surprise the water was really cold. Which property of water did she discover? A. Water molecules are cohesive. B. The temperature of liquid water rises and falls slowly. C.

Alisa, a skateboarder, is riding down a hill. If Alisa and the skateboard are considered a single object, what forces are acting on her? check all that apply push gravity normal force friction tension

A 6.0 kg object undergoes an acceleration of 2.0 m/s2. a. what is the magnitude of the net external force acting on it? b. if this same force is applied to a 4.0 kg object, what acceleration is produced?

What is the weight of 0.12kg mass?

Some lactic acid in the muscles dissipates during.

When two waves undergo complete, constructive interference, which of the following increases? A. speed B. amplitude C. wavelength D. frequency

Pressure = Force Area The formula above shows how pressure relates to force and area. For example, the pressure exerted by a fluid is equal to the force of the fluid divided by the area over which the force is applied.

1. Most waves are caused by vibrations. What motion in a transmitting antenna causes the vibrations that produce radio waves? 2. Name two common household appliances that produce electromagnetic waves other than radio waves.

A 3.70 kg block moving 2.09 m/s right hits a 2.42 kg block moving 3.92 m/s left. Find the total momentum of the system.