If you perform 40 joules of work lifting a 10-N box from the floor to a shelf, how high is the shelf?

Do u think that solids can unddergo convection

The exosphere is the layer of the atmosphere A. that absorbs ultraviolet radiation from the sun. B. closest to the Earth's surface. C. where gas molecules can be exchanged between Earth's atmosphere and outer space. D.

A 1250kg car is moving down the highway with a velocity of 32.0m/s when it bumps into the car ahead of it, which has a mass of 875kg and a velocity of 25.0 m/s

A circular horizontal surface having an area of 1020.5 mm2that is completely immersed in a fluid experiences a uniform force of 1.06 mN. The pressure applied by the fluid on this surface is

Retrieving information is the same as intentional learning. True False

A bird has a kinetic energy of 3 J and a potential energy of 25 J. What is the mechanical energy of the bird?

Material A has a higher thermal conductivity than Material B. Which material will transfer energy by conduction faster?

an electrical iron box having power 400w is operated in 10hours. what will be the energy consumed by the device in commercial unit?

True or False: If your gas pedal jams, you should turn the key to lock to lock the steering wheel.

Pylon cables in the National Grid have some resistance. Power (watts) = Current2 (amperes) x Resistance (ohms) Looking at the power equation above, can you explain why transmitting electricity at a very high voltage is beneficial?