A 1776 kg car has a speed of 10.3 m/s when it hits a tree. the tree doesn't move and the car comes to rest. find the change in kinetic energy of the car. answer in units of j.

Think Critically: A lightbulb converts 10 percent of the electrical energy it uses into radiant energy. Make a hypothesis about the other form of energy produced.

Which of the following is not a field force a) gravitational force b) electromagnetic force c) strong nuclear force d) spring force

A golfer hits a golf ball at an angle of 30 degrees from the ground, with an initial velocity of 120 ft/sec. It lands on the ground, after 5 seconds How far did the golf ball travel horizontally?

Why is natural gas referred to as a fossil fuel? A. Natural gas was formed from the breakdown of igneous rocks over millions of years. B. Natural gas was formed from decaying layers of plants in swamps millions of years ago.

How is mass connected to matter?

After creating a question and forming a hypothesis, what is the next step in the scientific method

Roger sees water balloons fall past his window. He notices that each balloon strikes the sidewalk 0.51 s after passing his window. Roger's room is on the second floor, 10 m above the sidewalk.

Which statements accurately describe the Doppler effect?

Describe how mass and distance affect gravitational force.

a bike can climb the inclined road at uniform speed of 72 km/hr by applying force 500N what will be the power applied by the bike?