The work done on an elevator that has a mass of 1000kg and lifted 4m in 10 seconds is how many joules.

Three solid, uniform, cylindrical flywheels, each of mass 65.0 kg and radius 1.47 m, rotate independently around a common axis through their centers. Two of the flywheels rotate in one direction at 8.

Which voice can produce a pitch that has a speed of 343 m/s and a wavelength of 0.68 m? Check all that apply. bass baritone tenor contralto sopran

Your 60-watt light bulb is plugged into a 110-volt household outlet and left on for 3 hours. Of each kWh costs $0.11, about how much money does the energy company charge you?

A 1.0 kg ball is thrown into the air with an initial veocity of 30. m/s. how much kinetic energy does the ball have?

What is the voltage of a circuit when 5C of charge flows with a 7V EMF?

Which statements regarding the sun's nuclear fusion are true? select all that apply. a. nuclear fusion only occurs in the core. b. hydrogen fuses to form helium. c. fusion in the sun will continue for at least 1 trillion more years. d.

Scientists can find the absolute age of a rock by using a uranium 235 dating b carbon 14 dating c carbon 12 dating d relative dating

What do scalars measure force acceleration magnitude velocity

Why do metals differ in specific heat? why is Al much higher than gold

Witch kind of force do you exert on an object when you pull towards you A-Applied force B-Attractive force C-Drag force D-Normal force