Jana lifted a 200-newton weight over her head to a distance of 2 meters above the ground. How much work did she do?

Juan is standing on the street. An ambulance moves toward him and then passes by. What best describes the pitch that Juan heats? (A) the pitch remains constant as the ambulance moves toward and then away from Juan.

A vehicle's kinetic energy can be overcome by:

What happens when tectonic plates move away from each other? Molten matter cools and sinks towards the core. Lava travels away from the crust and forms the mantle. Molten matter seeps through the crust and forms new land.

Counting the number of organisms in a small area and multiplying to estimate the number in a larger area is called a. direct observation. b. mark and recapture. c. population density. d. sampling.

As water begins to boil in a kettle the hotter water at the bottom of the kettle closest to the stove begins to rise and the cooler water above sinks and warms. Why does this occur?

What's the difference between mass & weight & how they are measured

Use the graph of distance versus time to complete the sentences. The cars on the higher track travel the cars on the lower track, in the same time. This means that the cars on the higher track have a average speed than those on the lower track.

List at least 3 physical properties that the professor describes of his newly discovered flubber

7. Who is Mara Grunbaum?

How much work is done in holding a 10 newton sack of potatoes while waiting in line at the grocery store for 3 minutes.