How much work in joules is necessary for a lift to raise a 2112 kg truck to a height of 1.75 m? [Write answer to two sig. figs.]
How much work in joules is necessary for a lift to raise a 2112 kg truck...
How much power in watts is necessary to do 553 J of work is done in 3.6 sec? [Write answer to two sig. figs.]
How much heat (in joules) is required to raise the temperature of 34.0 kg of water from 24 ∘C to 89 ∘C? The specific heat of water is 4186 J/kg⋅C∘. Express your answer using two significant figures.
How much work (in kJ) is required to lift a 35.8 kg mass to a height of 1.02 m above the floor?
3. How many Joules is needed to raise the temperature of 8.16 grams of aluminum from 25.0º to 34.0ºC ? [Report to 3 sig figs. Do not put in unit label.]
Determine the work done to lift a 300 lb rock into a truck bed vertically.how much work is necessary to push the rock up a frictionless ramp that's 20 degrees? Please let me know the answer clearly
Raise a mass 45.7 kg to height 7.7 in meters, then let it go. How much kinetic energy does it have in joules when it reaches the ground? Assume the acceleration of gravity is 9.8 m/s2.
How much work is required to lift a 5-kg dog 3 meters high and hold her at that height for an hour?
4. How much work is it to lift a 25 kg sack of cement vertically 4.3 m?
1. How much heat is needed to raise the temperature of 3 kg of water from 20oC to 40oC? Give answer in kJ (1kJ = 1000 J) (round answer to 3 sig fig) 2. How much heat is needed to raise the temperature of 3 kg of ice from -40oC to -20oC? (round answer to 3 sig fig) Specific heat of water: C = 4180 J/kgK Specific heat of ice: C = 2090 J/kgK Specific heat of ethanol: C= 2440...
5. An electric lift can raise a 250.0 kg load a distance of 10.0 m in 2.5 s. What is the power of the lift? (10 points) 6.what is the velocity of a 8.00 kg bowling ball if its kinetic energy is 87.5J?(15points) 7.A 800 N box is pushed across a level floor for a distance of S.0 m with a force of 450 N. How much work was done on the box? (15points) 8. A horizontal force of 19.6...