All the forces within a closed system are

a) internal

b) external

c) due to gravity

d) angular

A few years ago, Serena Williams dived to hit a tennis ball right after it bounced off the ground. The ball bounced on the ground 10.3 m from the net, and after Serena hit the ball it flew over the 0.

4. Identify Problems A student is describing a longitudinal wave in his notebook. He writes down "The distance between crests is 3 cm." What is wrong with what the student recorded?

What is an improvement of an invention?

The kinetic energy of a 10 Kg ball rolling at 10 meters per second is how many joules

What is a biological study?

2. How is temperature related to kinetic energy?

As stream velocity decrease, which factor will likely increase? A) erosion of the stream bank B) deposition of material in the stream C) amount of material carried downstream D) size of the particles carried downstream

What cells in the nervous signals travel through the nervous system

A mechanic pushes a 3.60 ✕ 103-kg car from rest to a speed of v, doing 5,130 j of work in the process. during this time, the car moves 21.0 m. neglecting friction between car and road, find v and the horizontal force exerted on the car.

Anika asks Eva to roll a basketball and then a bowling ball to her. Which requires more force to roll, and why?