Calculate the kinetic energy of a motorcycle of mass 60kg travelling at a velocity of 40km/h

A bike rider starts from rest and accelerates 28.0 meters down a slope in 5.00 seconds. What is her acceleration? Select one: a. 3.21 m/sec2 b. 1.75 m/sec2 c. 9.80 m/sec2 d. 2.24 m/sec2

Suppose you have one light bulb in a simple circuit. If you add a second identical light bulb in series, what would happen to the brightness of the first bulb?

What is a bright, star like object in the galaxy core

The interference of two sound waves of slightly different frequencies produces

The friends now feel ready to try a problem. Suppose an Atwood machine has a mass of m1 = 2.5 kg and another mass of m2 = 8.5 kg hanging on opposite sides of the pulley. Assume the pulley is massless and frictionless, and the cord is ideal.

What perspective of dream interpretation is being offered? A. Freudian B. activation-synthesis C. Jungian D. motivation Not D

A high-speed train travels 480 km from Paris to Grenoble, France, at an average speed of 180 km/h. How long will it take to reach Grenoble? A. 0.66 h B. 3.8 h C. 0.38 h D. 2.7 h

Water has a specific heat of 4.186 J/g°C, and ethanol has a specific heat of 2.450 J/g°C. Based on this information, which best compares water and ethanol? It requires more heat to raise the temperature of a gram of ethanol by 1°C.

Try it A volleyball player's hand applies a 39 N force while in contact with a volleyball for 2 seconds. What is the impulse on the ball?

Muscular strength is defined as: