a man begins pushing a lawn mower across a lawn from a standing start. which of the following is true?

a. you cannot tell whether the kinetic energy of the lawn mower is increasing or decreasing from the information given b. the man is decreasing the kinetic energy of the lawn mower
c. the kinetic energy of the lawn mower is not changing.
d. the man is increasing the kinetic energy of the lawn mower

Can you think of a way a rock unit with an older fossil could be above a rock until with a younger fossil? describe the scenario.

The key to stability is feedback between the reservoir and the fluxes into and/or out of the reservoir. assume that the rate of outflow from a reservoir depends on the size of the reservoir according to the following relationship: outflow rate= k x (size of reservoir), where k is a constant. a reservoir of water has a volume of 5000 liters, and the rate of outflow at steady state is 25 liters per minute. what is k? (give both the numerical value and its units.) what is the residence time? what is the relationship between k and the residence time?

Phase changes are chemical changes. true or false