Define normal force in your own words

How fast must a 1000 kg car be moving to have a kinetic energy of 1.0 kWh

The word kinetic comes from which Greek word? A. Kinedum B. Kinesis C. Kinestasis D. Kinematics

What does a positive (+) acceleration tell you about an object's motion?

The solar system consists of the sun and nine planets moving in definite orbits around the sun. How do the outer planets differ most from the inner planets? A. size and composition B. having shorter years C. the plane of their orbits D.

Explain the relationship between pitch and frequency.

What is an organ that has villi to absorb the nutrients

Assume you are a Medieval knight attacking a castle with a cannon. The ball leaves the cannon with a speed of 47.7 m/s. The barrel's angle with respect to the ground is 43.

0.005 kg of copper was heated from 20°C to 80°C. How much energy was used to eat Cu? (Specific heat capacity of Cu is 385 J/kg °C)

Assuming that the bohr model is valid, what is the kinetic energy of a photoelectron liberated by a photon with a the given wavelength from a state with given z and n

Compare the acceleration of a motorcycle that accelerates from 80 km/h to 90 km/h