A construction worker with a weight of 850 N stands on a roof that is sloped at 20. What is the magnitude of the normal force of the roof on the worker?

describe a potentially life threatening situation that could occur in the client who abruptly withdraws from long term use of cns stimulants

How to calculate the total current of a circuit which has both parallel and series connection

Would life be different if the electron were positively charged and the proton were negatively charged? Does the choice of signs have any bearing on physical and chemical interactions? Explain.

Compare the acceleration of a motorcycle that accelerates from 80 km/h to 90 km/h

Analyze how friction can be both a positive and negative aspect on our lives

What is the effect of the magnetic field on the protons? View Available Hint (s) What is the effect of the magnetic field on the protons? The protons are accelerated to the left, toward the S magnetic pole.

following statement supports which theory? "Astronomers have observed protoplanetary disks around distant newborn stars." Big Bang theory Nebular theory Cell theory String theory

For radio broadcast, sound signals are converted to a. ultraviolet waves. b. infrared waves. c. visible light waves. d. electromagnetic waves.

a roller coaster is hard to stop because it has a lot of inertia. Use Newton's first law of motion to explain why you feel tossed around whenever a roller coaster goes over a hill and through a loop.

Is balancing an egg on the equinox science or pseudoscience