A 40-kg pack is carried up a 2500-m-high mountain in 10.0 h. How much work is done?
A 40-kg pack is carried up a 2500-m-high mountain in 10.0 h. How much work is...
13. How much power does it take to lift 30.0 kg 10.0 m high in 5.00 s?
How much energy (J) is needed for a person to climb 332 m up a mountain if his/her weight is 78.5 kg?
Airflow lifts a 3.6 kg bird 50 m up. a) How much work was done by the flow? b) How much did its gravitational potential energy increase? A bird flies at a speed of 2.3 m/s if it has 14 J of kinetic energy. What is its mass?
A boxed 10.0-kg computer monitor is dragged by friction 5.50 m up along the moving surface of a conveyor belt inclined at an angle 34.9o above the horizontal. If the monitor’s speed is 2.10 m/s, how much work is done on the monitor by friction?
1- How much work is done by the horizontal force Fp = 150N on the 18-kg block when the force pushes the block 5.0 m up along the 32° frictionless incline? (b) How much work is done by the gravitational force on the block during this displacement? (c) How much work is done by the normal force? (d) What is the speed of the block (assume that it is zero initially) after this displacement? [Hint: Work-energy involves net work done.]...
A 3000-m-high mountain is located on the equator. How much faster does a climber on top of the mountain move than a surfer at a nearby beach? The earth's radius is 6400 km. Please use the numbers that are provided in the question so that I can see what I am doing incorrectly. Thank you very much in advance. Problem 4.30 Part A A 3000-m-high mountain is located on the equator. How much faster does a climber on top of...
A boxed 10.0 kg computer monitor is dragged by friction 5.50 m up along the moving surface of a conveyor belt inclined at an angle of 35.9 above the horizontal. If the monitor's speed is a constant 2.10 cm/s, how much work is done on the monitor by friction, gravity, and the normal force of the conveyor belt?
14. A cable is 12 m long and has a density of 5 kg/m. If the cable is hanging with a 20 kg bucket attached, how much work is done winding it up? Sketch what is happening. 14. A cable is 12 m long and has a density of 5 kg/m. If the cable is hanging with a 20 kg bucket attached, how much work is done winding it up? Sketch what is happening.
A 2.50 kg mass is pushed 10.0 m up a 30° incline. The work done is 125 J. What force is applied parallel to the incline to move the object? a. 10.8 N b. 12.5 N c. 14.4 N d. 24.5 N
A 70.0 kg firefighter climbs a flight of stairs 9.0 m high. How much work is required?