If ti takes 50 seconds to lift 10 newtons of books to a height of 7 meters, calculate the power required.

under what circumstances can the average velocity of a moving object be zero when its average speed is 50 km/hr?

Which of these signals the beginning of fall

What is your weight on Venus, assuming that the acceleration due to gravity on Venus is 8.875 m/s^2 and your mass is 50 kg.

Which states of matter have particles that move independently of one another with very little attraction?

In the kitchen of your house you would like to run a 240 W blender, a 30 W phone charger, a 720 W toaster oven, and two 120 W lights. Assuming your house is wired for 120 Volts, how much current will be pulled by these electrical devices?

For a fixed amount of gas, if the absolute temperature of the gas is doubled, what happens to the pressure of the gas?

A 500-kilogram sports car accelerates uni- formly from rest, reaching a speed of 30 me- ters per second in 6 seconds. What distance has the car traveled during the 6 seconds?

What is efficiencywhat is the formula of mechanical advantage and velocity ratio of labour

What is the wavelength of an ekectromagnetic wave that has a frequency of 40,000 hz? the speed of light is 3x10^8 m/s?

Witch of the following is an example of a pull