A boy pushes on a parked car with a force of 200 n. the car does not move. how much work does the boy do on the car?

If a prairie is burned by fire, what would happen to the animals that eat grass? A.) They would have an increase in their food. B.) They would have a decrease in their food. C.) They would stay on the prairie. D.) They would grow in their population.

What happens when the moon travels between the earth and the sun, causing the sun to become obscured from view?

What is the main energy formation that takes place in growing a flower

A physics student looks into a microscope and observes that small particles suspended in water are moving about in an irregular motion. Which of the following statements is the best explanation for this observation? a.

How do driver of cars use galvanometer

The power of a 1.5-volt alkaline cell varies with the number of hours of operation. A brand new D-cell can deliver as much as 13 A through a copper wire connected between terminals. Determine the power of a brand new D-cell.

You measure a watch's hour and minute hands to be 7.4 mm and 12.1 mm long, respectively. Part A In one day, by how much does the distance traveled by the tip of the minute hand exceed the distance traveled by the tip of the hour hand?

Describe the possible long term impact of a catastrophic event

Calculate the mass defect of the helium nucleus 42He. The mass of neutral 42He is given by MHe=4.002603u.

A transparent film laminated to a fabric is identified in the study material as a. stretch fabric. b. PVC. c. a skin. d. two-faced fabric