When a 644 lb boat is moving at 10fps, the motor conks out. How much farther will the boat glide, assuming its resistance to motion is 2v lb where v is in fps

Q: How much does it cost (in P) to operate a 670-W split-type inverter air conditioner for 8 in 30…

A: We have-Power, P= 670 Watt=0.67 KWatt.Time, t= 8 h per dayTotal days= 30Hence, time 't'=30×8h= 240 h

Q: An electric car is designed to run on a bank of batteries with a total potential difference of 23 V…

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Q: How much energy is consumed by a 1.1 kW hair dryer used for 12 min? How much energy is consumed by a…

A: Given data Power consumed of hair dryer is P= 1.1 kW Time is t= 12 min =0.2 hour The amount of…

Q: A 400-W computer (including the monitor) is turned on for 8.0hours per day. If eletricity costs…

A: GIVEN DATA : POWER RATING OF COMPUTER                                     P = 400 W        TIME…

Q: How much electrical energy (in kilowatt hours) would a 45.0 W light bulb use in 60.0 days if left on…

A: Given that                     The power of the bulb is (P) = 45W                      Time = 60days…

Q: When running on its 11.5V battery, a laptop computer uses 7.5W. The computer can run on battery…

A: The relation between the current, voltage and power is, P=IV Here P is the power, I is the current…

Q: A certain electric motor draws a current of  72 A  when connected to 120 V. (a) What is the motor's…

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Q: Am affliane uss brag the ° offlime uses 18KJ for S minuts an velty. flaney at g 200 V. Fud the…

A: Its a simple problem of current and electricity  energy consumed for 5 minutes is 18 kJ  so power…

Q: An all-electric car (not a hybrid) is designed to run from a bank of 12.0 V batteries with total…

A: Solution: Given: V = voltage of battery = 12.0 V U = total energy stored in the battery = 1.90 x 107…

Q: The average television set is said to be on 6 hours a day.   a) Calculate the yearly cost (total…

A: Given: Average time Television is ON = 6 h/day            Average power consumption = 130 W/TV…

Q: A battery can provide a current of 3.20 A at 2.00 V for 2.50 hr. How much energy (in kJ) is…

A: The equation for the energy produced is given by,

Q: When 3000N boat is moving at 3m/s, the motor conks out. How much farther will the boat glide,…

A:

Q: When a 644lb boat is moving at 10ft per sec, the motor conks out. How much farther will the boat…

A: Given: The mass of the boat m = 644 lb. The velocity of the boat v = 10 ft/s. The resistance to…

Q: A refrigerator using 1020 W runs one-third of the time. How much does the electricity cost to run…

A: The total time run by refrigerator ist=1330 days24 h=240 h

Q: 25.68 Compact Fluorescent Bulbs. Compact fluorescent bulbs are much more efficient at producing…

A: (a) Given,P=100Wlife time =750 hourspriceof bulb=0.75 bulbs are on for =4 hours3 years=3×365×4=4380…

Q: An 11.6 W energy efficient fluorescent light bulb is designed to produce the same illumination as a…

A: The energy is a scalar quantity , which represents the ability to do a certain work or process . The…

Q: The people who live in suburbs use simultaneously: 2Hp aircon for 3 hrs. 900 watts toaster for 9…

A:

Q: A hair dryer is rated at 1850 W. Assuming there are 30 days in a month, what is the monthly cost of…

A: Given data:  Power (P) = 1850 W = 1.850 kW Daily uses = 12 minutes = 0.2 hours Number of days in a…

Q: At RM 0.218 Kilowatt-hour, how much it cost to leave a 6 W kitchen bulb on day and night for a 6…

A: Required : At RM 0.218 Kilowatt-hour, how much it cost to leave a 6 W kitchen bulb on day and…

Q: a CFL or compact flourescent lamp uses less energy that its equivalent incandescent bulb. how much…

A: Electricity can be simply defined as a measure of the flow of electrical current. Electricity is…

Q: How long can a 12V car battery supply 250A to a starter motor if the battery has 4×10 J of chemical…

A: Given: Voltage, V=12 V Current, I=250 A Energy, E=4×10 J   To determine time taken by battery to…

Q: H 3a 6v R timing 412 Im 8 1. 5a 12V FIND: V, I, & R

A: For solving complex circuits we use two important laws,  1) Kirchhoff's Current law(KCL) 2)…

Q: A typical cost for electrical power is $0.120 per kilowatthour. Some people leave their porch light…

A: Given data P=75 WC=$ 0.12 /kWh

Q: A certain electric motor draws a current of 90 À when connected to 120 V. (a) What is the motor's…

A: Given :      Current, I = 90 A      Voltage, V = 120 V (a) Power, P = I*V                    P = 90…

Q: A house is heated by a 24.0-kW electric furnace. The local power company charges $0.150 per kW·h and…

A: power is defined as energy per unit time. power=Energytime  unit is kW time= Energy / Power using…

Q: A 1⁄2 hp motor draws a current of 4.0 A from a 120-V line. (a) Calculate the electric power used by…

A:

Q: Assuming 95.0% efficiency for the conversion of electrical power by the motor, what current must the…

A: The efficiency of the motor,(η)=0.95 ----(1) [Given] The voltage of the battery,(V)=12 V -----(2)…

Q: A refrigerator using 1005 W runs one-fourth of the time. How much does the electricity cost to run…

A: Power rating=P=1005 WTotal time=T=30 days=720 hrsRunning time=t=T/4=720/4=180 hrsCost per kWh=C=16¢

Q: Assuming 95.0% effciency for the conversloh of electrla power by the motor, what current must the…

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