What is the work done in lifting a 50 kg box 2 m vertically up?

Which of the following statements is NOT true of a horizontal projectile?

Cholose the statement that is NOT true about evaporation and condensation

What is the kinetic energy of 500 g mass moving at 2 m/s?

An air conditioner rated 2.2 kW is turned on continuously for 45 hours. What is the cost of electricity at the rate of 10 cents a unit?

Which of the following is NOT a form of heat transfer?

Energy produced by burning fuel is called:

What is the knetic energy of a 2 kg cart moving at 0.6 m/s?

If latent heat of fusion of ice is 3.34 x 105 J/kg, what is the amount of heat required to melt completely 400 g of ice without a temperature change?(i)     1.34 x 105 J (ii)    2.68 x 105 J (iii)   13.44 x 105 J (iv)   26.8 x 105 J

A car is moving West at a speed of 10 m/s. Which of the following statements is NOT true about the speed of a passenger in the car?