A drive-through restaurant can serve 20 cars per hour. The effective capacity and efficiency of this drive-through is known to be 15 and 0.9 respectively. What is the minimum number of drive-through needed to achieve an anticipated servicing of 500 cars per 9-hour a day?

Q: A weight lifter raises a 963 N weight a vertical distance of 1.87 m. Compute the work done by the…

A:

Q: If the typical household uses, on average, 3 kW of electrical power constantly, what would the…

A: Household circuit is using = 3kw-hr per hour. And total hours in month = 24×30 = 720 hours. So,…

Q: A microwave oven has a power requirement of 1,248 W. A frozen dinner requires 5.0 min to heat on…

A: Given: The power required to microwave is 1248 W. The time required to heat the frozen dinner is 5.0…

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

A:

Q: A manual chain hoist is used to lift a 750 kg crate through a distance of 23.5 m.  A force of 425 N…

A:

Q: A microwave oven has a power requirement of 1,251 W. A frozen dinner requires 6.8 min to heat on…

A: (a) Energy used in kWh

Q: In a sunny location, sunlight has a power density of about 1 kW/m2 . Photovoltaic solar cells can…

A: The input power given to a solar cell is given by the equation,…

Q: A conveyor belt uses 5 newtons​ [N] of force to move a 34 kilogram​ [kg] box to a velocity of 2.05…

A: We know As force is constant, Work done would be : W=Force.displacement=F.d=5dAnd as box reaches a…

Q: a worker exerts a force of 119 N on a lever to raise a block. the efficiency of the lever is 91.6…

A:

Q: A winch is driven by a 4.0 kW electric motor and is lifting a load of 400 kg to a height of 5.0 m.…

A: Formula of efficiency is as follows: η(%)=PoPin×100…

Q: 250 N force is required to raise 75 kg mass from a pulley. If rope is pulled 12 m then the load is…

A: Given: Effort, P = 250 N Mass, m = 75 kg Distance travelled by effort = 12 m Distance travelled by…

Q: A force of 1050 N is needed to move a crate weighing 3050 N up a ramp that is 3.89 m long. If the…

A:

Q: uppose the graph was represented using data from a small car with a mass of 313 kg. What is the…

A: Given data m=313 kg Here, m is the mass of the car. The work done by the car is the area under the…

Q: The work W done when lifting an object varies jointly with the mass m of the object and the square…

A: Answer:- The problem statement suggests that the work W varies jointly with the mass m and the…

Q: An inclined plane 13 ft long is used to slide a 260 lb box up to a loading platform 5 ft above…

A: Free body diagram

Q: A microwave oven has a power requirement of 1,263 W. A frozen dinner requires 5.8 min to heat on…

A: Given data:Power requirement of microwave oven, P = 1263 W = 1.263 kWTime, t = 5.8 min = 5.8 / 60 =…

Q: What is the average power consumption in watts of an appliance that uses 8.18 kW · h of energy per…

A: The average power consumption is given by Where E = Total energy used, t = total time taken

Q: 1. a) A conventional photovoltaic cell delivers 4.0x10a W of electric energy when illuminated with…

A: Output power by cell = 4.0 × 10-3 W  Input power = 1.2 × 10-1 W

Q: An electric water heater consumes 7.13 kW for 3.85 h per day. What is the cost (in dollars per year)…

A: An electric water heater consumes 7.13 kW for 3.85 h per day. In a year, the heater consumes…

Q: A gas-fired turbine generator for production electricity has an efficiency of about 50%. How many…

A: Efficiency is:         η=WQ W is heat output Q is heat given to the system. Amount of heat required…

Q: A pair of bullocks exerts a force of 140 N on a plough. The field being ploughed is 15 m long. How…

A: We know thatWorkdone=force×displacement

Q: Problem 1: Suppose a man does 35.5 kJ of work with an efficiency of 4.95 %. How much food energy, in…

A: Given Data, Work Done by the man (W)=35.5 kJ Efficiencyη=4.95 %

Q: A small space heater uses 1,212 Watts of power. What does it cost in dollars to use the heater for…

A: Given: The power is 1212 W. The number of the days is 30 days. The run time of the heater is 14.7 h…

Q: Suppose a theme park roller coaster has a train with six carriages. Each carriage takes eight…

A: The number of time roller coaster loads is N=60min-3min60smin30s=114times

Q: A cow is being lifted to the top of a cliff. The cow has a mass of 450 kg and the height of the…

A: The potential energy required to lift the mass m at height h is given by,  PE=mgh Given : Mass m=450…

Q: A microwave oven has a power requirement of 1,243 W. A frozen dinner requires 6.5 min to heat on…

A:

Q: A crane lifts a 320 kg crate up a height of 6.5 m. The crane uses 17 kJ of energy to lift this…

A: in above question we to find the efficiency of crane.

Q: A 75 kg sprinter accelerates from 0 to 8.0 m/s in 5.0 s. What is the metabolic energy, in kJ…

A: From work energy formula we know, Metabolic energy = change of K.E…

Q: An electric water heater consumes 4.88 kW for 3.85 h per day. What is the cost (in dollars per year)…

A: In one day number of kWh used, 4.88×3.85=18.788 kWh

Q: Sarah drove her car a distance of 506.7 km, and used 50.1 L of gasoline (petrol). What is her fuel…

A:

Q: A clothes dryer uses 3000 W and is run fro 1 hour. If the total useful energy to dry the clothes is…

A: Given: Power of the dryer P= 3000 W  time to use dryer = 1 hour  Total useful energy to dry the…

Q: Answer in exact form and decimal.

A: Given:

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

A: Power of coffee maker, Pc=1600 WTime of use, Tc=19 min=19 ×60 secPower of microwave oven, Pm=1100 W…

Q: A girl pulls a 5kg wagon with a force of 20 n for 7 m. If the final speed of the wagon is 3.5 m/s,…

A: The objective of this question is to determine the efficiency of the process in which a girl pulls a…

Q: In recent years, there has been a large push for an increase in the use of renewable resources to…

A: i) The mileage of the car, which use gasoline as fuel, is 27.5 mi/gal. ie., using 1 gallon of…

Q: In one of the videos I said that a typical American household uses energy at a rate of about 10,000…

A: Energy=10000joules

Q: A coal power plant has a rated output of 150 MW and a first law efficiency of 41%. Coal has an…

A: Given information: The energy density of the coal (C) = 24 MJ/kg The power output of the power plant…

Q: For number 1 and 2, find the dot product of the given quantities. Indicate your solution on a…

A:

Q: The average cost per item to produce q items is given by a(q) = 0.01q² - 0.6q+17, for q>0. What is…

A: Given, a(q)=0.01q2-0.6q+17 a. The total cost, Cq=q.aqCq=q0.01q2-0.6q+17Cq=0.01q3-0.6q2+17q b. The…

Q: Using an inclined plane with an IMA of 6, you push a box up the ramp and measure the amount of force…

A: Answer :   Efficiency (€) define as ratio of experimental determined advantage (AMA) to ideal…