How much kinetic energy does the object have?

A roller coaster is at the top of a hill and rolls to the top of a lower hill. if total energy is conserved, on the top of which hill is the kinetic energy of the roller coaster larger?

What is a neutral subatomic particle that has almost no mass and is released from a radioactive nucleus during by fission and fusion reactions. These particles can usually pass through matter undetected.

A skydiver has jumped out of a plane and is falling faster and faster. What forces are present in this situation? Question 4 options: gravity, air resistance, and normal force air resistance gravity and air resistance gravity

At one instant of time, a car and a truck are traveling side by side in adjacent lanes of a highway. The car has a greater velocity than the truck has. Does the car necessarily have the greater acceleration? Explain

A horizontal force of 400.0 N is required to pull a 1760 N truck across the floor at a constant speed. Find the coefficient of sliding friction.

A long distance runner has an average speed of 4m/s during a race. How far does the runner travel in 20 minutes?

Density is calculated by dividing

The one island species evolved into three different species. This is called?

Find the components of vector M shown in figure 5-7

Electrical current is actually made of a. static charges. b. moving electrons. c. high or low voltage. d. resistance within a circuit.