A lever is used to lift a heavy rock. The mechanical advantage of the lever is 4 and the lever applies a force of 800 N to the rock. What is the force applied to the lever?

What is a tiny sheet of silicon containing an entire circuit with many different components? A. a binary circuit B. a coded circuit C. an integrated circuit D. a stationary circuit

The angle of incidence at a solid/liquid boundary is 59.6a?°, and the index of refraction of the solid is n = 1.55.

How are interference fringes of light analogous to the varying intensity that you hear as you walk past a pair of speakers emitting the same sound?

Calculate the energy needed to heat 4 kg of water from 25 degrees c to 45 degrees c

There are two tuning forks struck at the same time. One tuning fork is tuned to a frequency note of 500 Hz. The other is tuned to a frequency of 487 Hz. How many beats will occur in 2 seconds?

A fast, white water cascade is also known as what?

What is a stack of membranes that packages chemicals

Under what condition (s) will an object be in equilibrium? Notice that equilibrium in physics has a broader definition. (A) Only if it is moving with constant velocity. (B) Only if it is at rest.

If a pressure gauge measure an increase in 3*10^ (5) Pa on an area of 0.7 m^2, calculate the increase in the force applied to the area?

Which of the following is an example of potential rather than kinetic energy? a. water rushing over Niagara Falls b. a molecule of glucose c. a crawling beetle foraging for food d. light flashes emitted by a firefly