11) What is the energy consumed by running a 1500W aircon unit 8.0 hours per day for 30days?

Q: 49. Along with energy obtained from fossil fuels, nuclear sources, and water, environmentalists are…

A: (C) option is correct.

Q: A 75.0 kg pole-vaulter running at 12.0 m/s vaults over the bar. His speed when he is above the bar…

A: Given data The mass is m=75.0 kg The initial velocity is u=12.0 m/s The final velocity is v=5.0 m/s…

Q: If your body is 20 percent efficient in converting food intake to useful work, how many kcal of food…

A: Write the given values with the suitable variables. η=20 %W=25×105 J Here, η and W are the…

Q: 15.0-kg canon is fired vertically upward from the ground, with an initial velocity of 569.0 m/s.…

A:

Q: A large household air conditioner may consume 13.0 kW of power. What is the cost (in $) of operating…

A:

Q: An energy-efficient lightbulb, taking in 26.0 W of power, can produce the same level of brightness…

A: Power consumed by the energy-efficient light bulb = 26.0 W  Energy consumed in one hour E26=26×3600…

Q: Q2(Hw) In two Wattmeter method, iff W-120.6W W2%=220,5W, Calculate the load p.f.

A: The phase angle (lag) in two wattmeter method is given by :  Putting values :

Q: A 60W light bulb is used 12 hours a day and is 30% efficient. How many kJ are used to power this…

A:

Q: Calculate the work done (in J) on a 1550 kg elevator car by its cable to lift it 37.5 m at a…

A: We have to be careful since we have to take the friction into consideration.  Given: Mass of the…

Q: cost of electricity

A:

Q: A large hydroelectric power plant uses water from a reservoir to turn a generator. The water leaves…

A:

Q: Find work done F=12 N 14-5m

A: Given data:  Force (F) = 12 N Displacement (d) = 5 m Required: Work (W)

Q: The third floor of a apartment is 9.4 meters above street level. How much work is needed to move a…

A:

Q: 2. How much work is done by 15 kW engine during 3.5 min?

A: Given value--- power = 15 kW. time = 3.5 min . We have to find--- work ?

Q: (II) If it requires 6.0 J of work to stretch a particularspring by 2.0 cm from its equilibrium…

A:

Q: How much power (energy/time) is required to pump 1250 m3 /h of water from a storage vessel to a…

A: Power needed = P W Volume of water (V) = 1250 m3 height  = 1m density of water (d) = 1000 kg/m3

Q: 2. Are you doing work in these situations? Also a question from your PHYS1111 class.

A: Work done is force that cause a body to move. It is the product of force and displacement.

Q: The “Energy Guide” label on a washing machine indicates that the washer will use $85 worth of hot…

A: Given,

Q: FL uses 60.0 W in an hour. Calculate the energy consumed buy the bulb?

A: Given  Power = 60 W Time = 1 hour = 3600 sec

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: 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: A car generating a power of 92041.43watts is traveling on a road with a coefficient of kinetic…

A: From Newton's law Fnet=Fapp-FfPv=ma-μkmgma-μkmg=Pvma-μkg=Pvm=Pva-μkg

Q: A model aircraft internal-combustion engine produces 10 W of power. How much power is this in (a)…

A:

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: 17. An energy efficient lightbulb, taking in 28.0 W of power, can produce the same level of…

A: Write the given data with appropriate variables. Here, P1 denotes the power of an efficient bulb,…

Q: (II) A pump lifts 27.0 kg of water per minute through aheight of 3.50 m. What minimum output rating…

A:

Q: An ice cube is placed in a microwave oven. Suppose theoven delivers 105 W of power to the ice cube…

A:

Q: 8. A 400 hp engine in a interstate. If the car

A:

Q: (II) How much work can a 2.0-hp motor do in 1.0 h?

A: Formula of work done is as follows; W=Pt…

Q: 15. The third floor of a house is 8.0 meters above street level. How much work is needed to move a…

A: Potential energy : It is the energy held by an object because of its position relative to other…

Q: body Becond What jB jts power ? joules of work jm 9 do es 45

A: Given data :            Work  =  w           Time  =  t             To find  :                Power

Q: A pumped-storage reservoir sits 144 m above its generating station and holds 7.0×109 kg of water.…

A: Given that, mass o the water is 7*10^9 Kg and height is 144m and power is 341MW and time is 6.1…

Q: A certain rain cloud at an altitude of 1.53 km contains 3.20 ✕ 107 kg of water vapor. How long would…

A: height, h = 1530 m  mass, m = 3.2 x 107 kg Power, P = 3.05 kW

Q: 2 How much energy does it take to drive a 200 Hp car at 20 % power for 3 hours if it is 12 %…

A:

Q: Problem 2: A large household air conditioner may consume 15.5 kW of power during normal operation.…

A:

Q: In unloading grain from the hold of a ship, an elevator lifts the grain through a distance of 12 m.…

A: Given,height of the elevator, h = 12 mgrain is discharged at the top of the elevator at a rate of,…

Q: 4. A train of mass 200 tonnes moves on a level track having a track resistance of 85 newtons per…

A:

Q: Water is lifted out of a well 20.0 mm deep by a motor rated at 1.10 hp. Assuming efficiency 85 % ,…

A:

Q: how much work per cycle does it deliver?

A:

Q: energy-efficient lightbulb, taking in 26.0 W of power, can produce the same level of brightness as a…

A: Answer:-  Work on one bulb for 750 hours the total number of bulb required for 10000 hours.…

Q: How long will the 4-kW rice cooker run on 3.6x10^6 J of energy?

A: Power×time=Energy≡4×103W×time=3.6×106J≡time=3.6×106J4×103=900s900s=900s60=15minutes

Q: Estimate the amount of engine horsepower required to drive the air conditioner. Referring to typical…

A:

Q: Power of the Human Heart. The human heart is a powerful and extremely reliable pump. Each day it…

A: Given,  Volume of the blood discharge by heart in a day, V = 7500 L Density of the blood, ρ = 1050…

Q: 3. The mass of 1 m^3 of fresh water is 1,000 kg. At the top of a hydroelectric dam the potential…

A: Given The mass of the water is m = 1000 kg. The volume of water is V = 1 m3. The density of water…

Q: A 1200-N force is applied parallel to a horizontal frictionless surface. It pushes an 80 N box 2m…

A:

Q: A heat turbine can generate a maximum power of 250 MW. How much work can the turbine do in 7.8 min?

A: Given Power of turbine = 250 MW Time taken = 7.8 min We have to calculate work done by turbine…

Q: A 2,200-kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 4.60 m…

A: Given Data: Mass is m = 2100 kg Height of fall h = 4.6 m The separation is d=15 cm=0.15 m

Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.