Mr white ran from his home to a book store 400 meters away at an average speed of 2 meters per second. he walked back to his home at an average speed of 1 meter per second. what is the average speed of the whole journey

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.

What accounts for an increase in the temperature of a gas that is kept at constant volume? a. energy has been removed as heat from the gas. b. energy has been added as heat to the gas. c. energy has been removed as work done by the gas. d. energy has been added as work done by the gas.

Notice how they put future which of the clouds shown would indicate a possible future rain storm? a) b) c) d)