Which of the following is a characteristic of a sedentary person? uses the stairs instead of an escalator engages in health-enhancing physical activities becomes easily winded during simple activities participates on a competitive sports team

A child pulls a sled by a rope across the lawn at a constant speed. what forces act on the sled?

Carla uses a table tennis ball and a volleyball to represent two astronomical bodies based on their sizes.

Calculate the average power required to lift a 490-newton object a vertical distance of 2.0 meters in 10. seconds. [Show all work, including the equation and substitution with units.]

Identify each of the cell structures in the figure

You can tell when you are in an earthquake s shadow zone. a. True b. False

Which pair of properties do all liquids have? A) Fixed volume; no definite shape B) Conducts electricity well; compressible C) Compressible; brittle D) Good conductor of heat; takes shape of container

0.2000 kg of water at 20.00°C is contained in a 0.1000-kg copper container. The container is shaken vigorously for 10.00 minutes to cause the temperature to rise to 22.00°C. Calculate the work done on the system and the heat supplied to the system.

Suppose all of the apples have a mass of 0.10 kg and one of the apples in the bowl (C) is 1.0 meter off the ground. If the apple (C) falls from the table, what is the maximum kinetic energy it can gain?

Where would a car traveling on a roller coaster have the most potential energy At the bottom It's always the same At the top Halfway to the top

Is a magnetic reversal a threat to life on Earth? Whay do you say?