What is the resistance of a 20.0-m-long piece of 12-gauge copper wire having a 2.053-mm diameter?

Q: A pumped water storage plant has a head of 600 m and volume 5 x 10° m². How much potential energy is…

A: Height of Storage tank equal to 600 metre

Q: Rings 2 n work done by the мал 2

A: Write the expression for the work done. W=F→⋅d→W=Fdcosθ Here, F is the force, d is the distance, and…

Q: A small vegetable shop use the following electric appliances: (1) Two Air Conditioner of rating 1600…

A:

Q: Determine the resultant force and specify where it acts measured from point A. 400 lh 250 lh/t 12…

A:

Q: power mower does 8 x 104 J of work in 0.4 h. What power does it use

A:

Q: Take a boat with a mass of 1.5 kg and lift it to a height of 2m. Compute the amount of work done.

A: Given:Mass,m=1.5 kgHeight,h=2mGravitational acceleration,g=9.81 m/s2Now,Work done,wW=Fdcosθ…

Q: Exergy (Work Potential) Associated with Kinetic and Potential Energy.

A:

Q: How much work must be done by frictional forces in slowing a 1,599-kg car from 14.7 m/s to rest?…

A:

Q: How much work is done by the gravitational force when a 175 kg pile driver falls 6.0m ?

A: Mass, m = 175 kg Distance moved  by object, d = 6 m

Q: what is the power used in this exercise?

A:

Q: How much work is done lifting a 20 pound object from the ground to the top of a 50 foot building if…

A: Weight = 20 pounds Weight per foot = 2.5 lb/ft Height = 50 ft Workdone, W = ?

Q: (Hw) Calculate the valueof RL Forwhich it will receivematimum fower From the Lond.and Calculate the…

A:

Q: A box with a max of 20 KG at 5m is lifted to 20 m how much work was done? (Used=changed in PE

A: The distance moved by the box is h=20-5m=15m

Q: 1) Find FF u=0.5 2) Find FN and Fparallel Inclined plane 30° 20kg थे 80N

A:

Q: 5. bhat power in KW 1s Kupplied to a 12 hp mo tor having an effiaenay of qo percent chen it is…

A: Input powerPin. Given, motor horsepowerhp=12 hpefficiencyη=90%=0.90

Q: 18 kg. over the side of a building. the work required to the chain

A:

Q: Derive relationship of Power (a secondary dimension) in terms of primary dimensions

A: Any quantity can be defined in terms of primary quantities which are mass, length , time and…

Q: ft·lb to hr kg•m power of 200

A: 1 Pound Foot per hour is equal to 50 kilogram Meter per Second

Q: The rate of doing work is known as

A: In physics, the rate of doing work is known as Power. It is equivalent to an amount of energy…

Q: A large household air conditioner may consume 15.0 kW of power. What is the cost of operating this…

A: The total time in hours for which the air conditioner operates is

Q: 0. is defined as the rate at which work is done

A: We know that power P=Wt Rate of doing work.

Q: A large household air conditioner may consume 14.0 kW of power. What is the cost of operating this…

A: Unit of power=KiloWatt=KW Unit of Time=hour Power=Energy/time Energy=Power X time Unit of energy is…

Q: Compute and provide solution 1. A 23.2 kg boy fell 0.900 m out of the bed. Hom much potential…

A: Given, Mass = 23.2 kg Height = 0.900 m

Q: 28. How much work is done lifting a 3-m chain over the side of a building if the chain has mass…

A: Required : Work done in lifting a chain.

Q: 3) How much time does it take to do 9,560 Joules of work with 860 watts of power? -

A: solution is given by

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

A:

Q: How much work is done by a machine to lift 750 kg of bricks to a height of 8.2 m?

A: Work done = gain in the potential energy by the bricks = m×g×h Here, m= 750 kg            g= 10 m/s2…

Q: A pair of bullocks exerts a force of 160 N on a plough . The field being ploughed is 18 m long . How…

A:

Q: When is potential energy largest? Why?

A: Potential energy of any object is the energy possessed by the object by virtue of position (or…

Q: How much work is done lifting a 35 pound object from the ground to the top of a 30 foot building if…

A:

Q: 1. Show that the vectors A=2î – 31– k and B= -6î + 9ĵ + 3k parallel. are ANS:

A:

Q: this is a 23 watt energy efficient light bulb (1bulb) which cost 6.00.the retail price of…

A: The energy consumed by a device is given by E = P×t, where P = the power of the device t = time

Q: 17.) How much work is done when a force of 3000N moves its point of application 0.4m in the…

A: Given data:  Force (F) = 3000 N Displacement (d) = 0.4 m in the direction of force Required: Work…

Q: A stationery shop use the following electric appliances: () Three Air Conditioner of rating 2100 W…

A: