Calculate the resistance of the filament of a 40 Watt lightbulb if it draws 3 amperes when 120V are impressed across it

Determine the power input for a motor necessary to lift 300 lb at a constant rate of 7 ft/s. the efficiency of the motor is ϵ = 0.65.

How is hair like a pencil

A truck accelerates uniformly from rest to a speed of 9.2m/s over a distance of 26.2 m. Determine the acceleration of the truck.

Give two examples of ways to conserve energy at home.

Heterogeneous mixtures have:

A baseball player was hit by a baseball in the left eye and complains of double vision. What should you do? A. Restrict spinal movement B. Assess pupillary response C. Perform a detailed exam D. Apply ice to orbit

An approaching storm is moving at 15 km an hour what do you need to know to determine its velocity

How did astronomers precisely determine the length of an Astronomical Unit in the 1960s?

If a 1.50 kg mass revolves at the end of a string 0.50 m long, and its tangential speed is 6.0 m/s, calculate the centripetal force.

Balanced forces can change an object's direction. A. True B. False