On a particular day, the following appliances are used for the times indicated: a 1600-W coffee maker, 19 min, and a 1100-W microwave oven, 3.2 min. With these power requirements, find how much it costs to use these appliances at an electrical cost of 9¢ per kWh.

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: What is the Kinetic Energy of a 1200 kg object that is moving with a speed of 24 m/s?

A:

Q: How much work is required to lift a 9.5-kg backpack 1.4 m to put it on?

A: Dear student The work is defined as : W = Force × Displacement in the direction of force

Q: A small truck has a mass of 2225 kg. How much work is required to decrease the speed of the vehicle…

A:

Q: How much potential energy does a car gain if a crane lift the car with a mass of 1500 and 20 m…

A: Mass of the car is (m)=1500kg  Height (h) = 20m Acceleration due to gravity (g) = 9.8 m/s2

Q: How much work must be done to stop a 1025 kg car traveling at 115 km/hr?

A: When a car is stopped, the work done is the equal to the difference of kinetic energy between…

Q: On a particular day, the following appliances are used for the times indicated: a 1600-W coffee…

A:

Q: A student weighing 400 N climbs a flight of stairs 2 m high in 6 s. What power in watts is required…

A:

Q: What is the kinetic energy of a 25 kg dog that is running at a speed of 8.7 m/s (about 19 mi/h)?

A: The formula for kinetic energy is given as follows:K=12mv2 K is the kinetic energy , m is the mass…

Q: What is the cost of operating a 3.00-W electric clock for a year if the cost of electricity is…

A: The number of hours for which the clock is operated can be obtained as 1 year=1year×365 days1year×24…

Q: 6 J of work is done by a force in moving an object uniformly through 120 m in 1 minute. The force…

A: The solution can be given as,

Q: What is the yearly cost, in dollars, of operating such a clock if the cost of electricity is $0.125…

A: Power of clock (P) = 3.1 W cost of electricity = $0.125 per kWh

Q: If a crane does 350J of work on a beam in 6 seconds, what is the crane's power?

A: Given The Work done by the crane is W = 350 J. The time up to which work is done is t = 6 s. The…

Q: How long Does it take a worker producing 200W of power to do 10,000 J of work?

A: Given data The power required by the worker is given as P = 200 W. The work required to do is given…

Q: What is the mechanical energy of a moving object that has a mass of 5 kg, a velocity of 3 m/s and is…

A:

Q: how much potential energy does a person of mass 52kg have if they are standing at the top of a…

A: Given Data: The mass of a person is, m=52 kg The height of a building is, h=58 m   The expression…

Q: What is the potential energy (compared to the floor) of a 1200N box which is 4.0 m above the floor?

A:

Q: A student weighing 311 N climbs a flight of stairs 3 m high in 6 s. What power in watts is required…

A:

Q: A 600-newton person runs up a set of stairs that is 2.5 meters high in 2 seconds. How much power has…

A: Given data The magnitude of the force applied by the person is F = 600 N The height of the stairs is…

Q: A computer uses 1.62 x 10^4 J in one hour. What is the power used?

A: The energy usage of device is 1.62 ×104J in one hour.    Power is the rate with respect to time at…

Q: If a blow dryer uses 1.1 x 10³ J of energy, and it is in use for 15 minutes, what is its power? the…

A: Given, energy consumed E=1.1x103W

Q: Chichay uses the washing machine which consumes energy at 300 Watts at normal washing speed. How…

A: Given(s): Power of the machine, P=300 W=0.30 kW It runs for, t=80 min=8060h=43 h Cost of…

Q: What is the kinetic energy of a 27 kg dog that is running at a speed of 7.9 m/s (about 18 mi/h)?

A:

Q: A student weighing 292 N climbs a flights of stairs 9 m high in 5 s. What power in watts is required…

A: Power is given by:- Power(P) = work done(w)/time taken(t). Here, work done is against gravitational…

Q: How much potential energy does a person of mass 57 kg have if they are standing at the top of a…

A: Potential energy is given by  U = mgh  m = 57kg,   h =62.4 m ,  g = 9.81 m/s2  U = 57*9.81*62.4 =…

Q: What is the work done in lifting a 50 lb bag of salt 5 ft?

A: Work done

Q: What is the kinetic energy of a 1,904.53 kg car that travels at 7.92 m/s?

A:

Q: What work is done on a level track in bringing the velocity of a train weighing 200 tons from zero…

A:

Q: how much work is done when a force of 816.0N is exerted while pushing a crate across a level floor…

A: GivenForce F = 816.0 NDistance d = 1.40 m

Q: A 4.2 kg box is lifted up to a height of 2 m. What is the gravitational potential energy (GPE)? *

A:

Q: A car with a mass of 1500 kg drives along the highway at 27 m/s, what is the Kinetic Energy of the…

A:

Q: A lamp consumes 1200 J of electrical energy in 13 s. What is it's Power ?

A: Given data:  Energy (E) = 1200 J Time (t) = 13 s Required: Power (P)

Q: How high would a 4.8 kg squirrel has to climb a tree to have a gravitational potential energy of 52…

A: GivenGravitational potential energy = 52 JMass of squirrel (m) = 4.8 kg

Q: When the Glen Canyon hydroelectric power plant in Arizona is running at capacity, 690 m3 of water…

A: The power is,

Q: What is the kinetic energy of a 15 kg dog that is running at a speed of 7.0 m/s (about 16 mi/h)?

A: Given mass m = 15 kg speed v = 7.0 m/s  we have to find out kinetic energy

Q: What power is needed to move a 4 kN car up an 8-degree incline with a constant speed of 80 kph…

A: Given data: Mass of the car m = 4kN=4000n Angle θ=8° Speed v= 80kph=80×518=22.22 m/s Frictional…

Q: How much weight should a diver put in order to gain a gravitational potential energy of 75 kJ if he…

A: Given: The amount of gravitational potential energy is 75 kJ. The mass of the driver is 60 kg. The…

Q: How much work is required to stop a 2000 kg car moving with a speed of 30 km/hr?

A: Data Given ,  Mass of the car ( m ) = 2000 kg Velocity ( v ) = 30 km/hr = 30 × 518 m/s…

Q: How much work is required or lift a 4.1 kg concrete block to a height of 2.5 m?

A: Potential energy is the energy that is equal to the product of mass, gravitational acceleration, and…

Q: what is the kinetic energy of a 2000kg car traveling at 25 m/s

A: Kinetic Energy is energy that is due to motion. Its unit is Joule 'J'. Formula: KE=12mv2 Given:…

Q: How much work is done in raising a 42.3 kg crate a distance of 1.5 m above a storeroom floor?

A:

Q: How long does it take a worker producing 200 w of power to do 10000 j of work?

A: Given information:Power (P) = 500 w.Work need to be produced (W) = 10000 J.We know that power is…

Q: A student weighing 279 N climbs a flight of stairs 5 m high in 9 s. What power in watts is required…

A:

Q: A man climbs on to a wall that is 3.6 m height and gains 2268 J of potential energy. What is the…

A:

Q: A chain 59 meters long whose mass is 23 kilograms is hanging over the edge of a tall building and…

A: It is given that,

Q: How long (in s) does it take a worker producing 155 W of power to do 10,100 J of work?

A: The relation of the power is given as P=Wt Let W be the work done, P be the power, and t be the time…