which of the three household objects cost the most to power per day

Q: Differentiate between work and power.

A: Work and power are two important concepts of mechanics. Both are scalar quantities.

Q: takes 8 seconds for a 30- kg girl to climb a 9 m high flight of stairs. How much horsepower is she…

A:

Q: Work is energy transferred by

A: Work is done on an object when energy is transferred to the object whereas work is done by an object…

Q: A force of F = 159 N pulls a mass of 15 kg a distance of x = 4.8 m. How much work is done by the…

A:

Q: State whether the potential energy of the underlined object increases or decreases as a result of…

A: Potential energy is basically the amount of work done is stored in the process.

Q: A new conveyor system at the local packaging plan will utilize a motor-powered mechanical arm to…

A: The quantity of energy transferred in a unit of time is referred to as power. Mathematically,…

Q: What power output is required of a motor that needs to lift a 450 kg elevator car 12 meters in 8.0…

A:

Q: Power is the rate of change in energy, regardless of whether the change is due to transformation,…

A: The rate of change in energy is called power. Energy cannot be destroyed, it can be transferred or…

Q: A mechanic working on a 100-m radar tower drops a hammer weighing 44.5 N. The work done on the…

A:

Q: Problem 5: A horizontal force of magnitude 19.9 N pushes a box along a horizontal floor at a…

A: Given value--- force = 19.9 N. constant speed = 6.99 m/s. We have to find--- power ?

Q: How much power is used if an 7.652 kg box is lifted to a height of 14.54 m in 2.42 seconds?  Round…

A: Mass of box  m = 7.652 kg  Height to which it is raised  h = 14.54 m  Time taken to reach height h T…

Q: A person who weighs 80 pounds walked up two flight of stairs in 5 minutes. Each flight of stairs has…

A: The expression for find work is W=F·d Substitute values in the above equation…

Q: How much kinetic energy does a 0.3-kg stone have if it is thrown at 15 m/s? calculate to one…

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Q: A force of 49 N raises a 5 kg object 0.82 m upwards. How much work was done by the force?

A:

Q: a small electric motor lifts a 12.5 kg mass to a height of 4.20 in 75.0 s. what is the power output…

A:

Q: If a car engine can generate 26,093 W of power in 3.3 seconds, how much work does the engine do?

A: Power is the rate at which work is done. P =W/t  Where, P = power  W = work done t = time taken

Q: Which of the following is not a unit of power? O J/s O N'm O horsepower Watts

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Q: Is the energy bar for a firefighter sliding down a fire pole from the second floor to the ground

A: The potential energy of an object above height h from the ground is given by mgh.

Q: A 26 meter chain is hanging from a winch located 26 meters above the ground. If the chain weighs 4…

A: Basic: we know that the work done is given by force into. Displacement  so we just find the small…

Q: A force of 49 N raises a 5 kg object 0.61 m upwards. How much work was done by the force?

A: Applied force (F) = 49 N Mass (m) = 5 kg Distance moved (d) = 0.61 m (upwards)

Q: Calculate the energy used per day (kWh) of a car with an efficiency of 12 kilometers per liter and…

A: Answer:- 12.5 kW h  Given  Total distance travelled by the car per day (S) = (90)/(6) = 15 km per…

Q: A conveyor belt increases the speed of a 14 kg package from rest to 6 m/s. This acceleration occured…

A: