A toaster uses 400 W of power. How much energy does it use in 5 seconds? A. 2000 J B. 1000 J C. 80 J D. 400 J

Mechanical energy often changes between potential and kinetic energy. True or False

A car weighing 10,000 N is moving around a horizontal curve whose radius is 100 m. What is the minimum coefficient of static friction, between the tires and road surface, required to keep the car from sliding?

7. A truck traveling west on the highway experiences an acceleration to the east. What could be the cause of this acceleration?

What is the formula for velocity?

Which statements describe the applications of nuclear medicine scans? Check all that apply. O assess disease progression and tissue function utilize ultrasound utilize a biologically active molecule require a CT scan utilize a radionuclide tracer

Are microwaves and radio waves faster or slower than other types of electromagnetic energy?

If you dive under-water, you notice an uncomfortable pressure on your eardrums due to the increased pressure. The human eardrum has an area of about 70 mm2 (7*10-5m2), and it can sustain a force of about 7 N without rupturing.

Why cant kinetic energy ever be greater than potential energy

For a stationary observer, when the source of a sound is moving, its pitch appears to change.

Give an example of each simple machine