A 15.0-kg block is dragged over a rough, horizontal surface by a 75-n force acting at 21° above the horizontal. the block is displaced 5.7 m, and the coefficient of kinetic friction is 0.200. (a) find the work done on the block by the 75-n force.

A book has a mass of 50 grams and an acceleration of 5 m/s/s. What is the force on the book? 220 N 20 N 250 N 10 N

Which property increases as an electromgnetic waze's decreases

A car initially at rest can accelerate at 7 m/s2. How long will it take the car to reach 60 m/s?

What are some possible sources of error when using the modified mercalli scale to locate the epicenter of an earthquake?

Which of the following would not be a reason to create a controlled-fusion reactor? A. To confine a fission reaction B. To start and control a fusion reaction C. To utilize resources already available to us D.

Which sequence shows electromagnetic waves arranged from shorter to longer wavelengths?. A. visible light, infrared radiation, microwaves, and ultraviolet rays. B. infrared radiation, Visible light, ultraviolet rays, microwaves. C.

Will the April 29th 2020 astroid be the end of humanity as we know it?

Which option identifies the two natural wind patterns that move air masses in the United States?

The pressure, p, of water (in pounds per square foot) at a depth of d feet below the surface is given by the formula p=15+15/33d. If a diver is 100 feet below surface, what is the pressure of the water on the diver? a. 15.0 pounds per square feet b.

Ndy has two samples of liquids. Sample A has a pH of 4, and sample B has a pH of 6. What can Andy conclude about these two samples? Sample A is, and sample B is. NextReset