Calculate the kinetic energy of a 0,6kg ball when it is thrown and reaches a speed of 5 m/s

A) 7J

B) 6J

C) 10 J

D) 7,5 J

E) 16 J

When a student combed his dry hair for a long time, his hair began to stand up. Which of these has Most Likely happend?

A car racer accelerates uniformly to a velocity of 135 m/s over a distance of 412 m. Determine the acceleration of the car.

Which of the following is an example of a decomposition reaction? a. photosynthesis b. digestion c. polymerization d. exchange of ions between two compounds

What is velocity measured in?

How is an electromagnet different from a magnet? a A magnet depends upon strength of the current. b An electromagnet can be changed by changing the amount of current.

A car starting from a standstill accelerates at a rate of 4 meters per second squared. how far, in kilometers, will the car travel in 20 seconds A. 0.8km B. 800km C. 40km D. 1,600km

A small mass m on a string is rotating without friction in a circle. The string is shortened by pulling it through the axis of rotation without any external torque. What happens to the angular velocity of the object? a. It decreases. b. It increases.

Which of the following instruments is used to measure air pressure? a. thermometer b. barometer c. anemometer d. hygrometer

The speed of a nerve impulse in the human body is about 100 m/s. If you accidentally stub you toe in the dark, estimate the time it takes the nerve impulse to travel to your brain. (Assume that you are approximately 1.

Volume, mass, and weight can be measured with balances, scales, and?