A 1000 kg car is moving along a level highway with a speed of 15 m/s. The driver takes her foot off the gas and the car experiences a friction force of 500 N over a distance of 130 m. Determine the final speed of the car. Round to the tenths place.

Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above