If the motor exerts a constant force of 30 lb on the cable, determine the power that must be supplied to the motor if the load has been hoisted s = 10 ft starting from rest. the motor has an efficiency of ϵ = 0.76.

Radioactivity is a tendency for an element or a material to

What is load? what are the effect of load?

Which list of properties of alternation current is the most likely reason it was chosen over direct current to provide electricity across the country

Example of an object in motion

Which particle builds a static electric charge when it is transferred from one object to another? A. proton B. atom C. electron D. molecule

What was the original mission of the voyager space probes? A. to land on venus. B. to study comets and asteroids. C. to explore Jupiter and Saturn

If you weigh 660 n on the earth, what would be your weight on the surface of a neutron star that has the same mass as our sun and a diameter of 19.0 km? take the mass of the sun to be ms = 1.99*1030 kg, the gravitational constant to be g = 6.

A 4kg mass traveling eastwards at 4m. s per second collides with a 3kg mass traveling westward as 8m. s per second ... calculate the total momentum of mass before they colide

A 231-ω and a 206-ω resistor are connected in series across an unspecified power supply. if the current through the 231-ω resistor is 0.39 a, what is the exact current (in a. through the 206-ω resistor? do not include units with your answer.

What is it called when you connect an object to earth with a conductor