10. A 100 MW expressed in powers of 10 is given by: * O 1.0 x 106 W 1.0 x 107 W 1.0 x 108 W 1.0 x 1011 W

Q: Lightbulb A was found out to give 30.0W of power, producing the same brightness as lightbulb B…

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Q: Which of the following is the rate at which energy is transferred? Briefly explain. (a) Power (b)…

A: Firstly knowing all the definitions one by one. (a)Power:-Power can be defined as the rate at which…

Q: Four light bulbs, rated at 100 W, 75 W, 50 W and 25 W each, are in parallel. What is the total power…

A: Power rating of light bulb 1,  Power rating of light bulb 2,  Power rating of light bulb 3,  Power…

Q: Two protons are released from rest when they are 0.7 µm apart. What is their initial potential…

A: Given: Separation between protons  r=0.7 μm=0.7×10-6 m Standard value used : Proton charge…

Q: Which one of the following is not the unit of energy

A: The formula of Energy is, E=F.d From above, unit of energy is Newton.-meter. The SI unit of energy…

Q: A car generating a power of 92209.72watts is traveling on a road with a coefficient of kinetic…

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Q: An electric motor of a model train moves the train at a constant velocity of 2m/s for 21.0 seconds.…

A: Given data:  Velocity (v) = 2 m/s Time (t) = 21.0 s Force (F) = 2.5 N Required: The average power…

Q: An apple, starting at rest, falls from a tree branch 2.0 m above the ground. When the apple hits the…

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Q: How long will it take a 2100 W motor to lift a 300 kg piano to a six story window locate 16.0 m a…

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Q: Calculate P3 (in W). Find the total power (in W) supplied by the source.

A: The net resistance (Rnet) of the circuit shown can be computed as follows. The net current (I) can…

Q: Lightbulb A was found out to give 30.0W of power, producing the same brightness as lightbulb B…

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Q: One Watt = ? A) 1 Joule/sec B) 1 erg/sec C) 1 Pascal/sec D) 1 m/s

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Q: kilowatt (kWh)

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Q: 34. What is the work that a 256 W electric grinder can do in three minutes? Group of answer choices…

A: Power of electric grinder = 256 w Time t = 3 min = 180s

Q: 94. Which of the following is a unit of energy?* O a. W O b. kg m/s O c.J O d. m/s

A: Energy : Energy is defined as the capacity of doing work.

Q: Which of the following is not a unit of power? Watt ft · lb/s J/s kW · h

A: The Power of a system is the capacity to do work by the system in unit time. Mathematically, it is…

Q: Which one of the following is NOT the unit of power? Watts Íb/s Nm/s O J/s

A: Power is rate of change of energy.

Q: A person in good physical condition can put out 100 W of useful power for several hours at a…

A: capacity of electric dryer = 4 kW Capacity of each person = 100 W = 0.1 kW

Q: 3. One watt is equivalent to one (1) N•m (2) N/m (3) J•s (4) J/s

A: 'Watt' is the unit of power. Power is defined as energy per unit of time.                    Power…

Q: Quèstion 13 kg m? The Sl unit of power is 3 True False

A: Two types of quantities are found- fundamental and derived quantities. Fundamental quantities are…

Q: One of these units are not power unit Watt N.m\s Joule-second O hp O

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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: How long will it take a 1700 W motor to lift a 315 kg piano to a sixth-story window 15.5 m above?

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Q: 1) yes Is it possible to do work on an SBiect that remains at rest? 2) no

A: Answer:-     (2)  no    No , it's not possible to do work on an object that remains at rest .…

Q: In a dam, water is flowing at the rate of 1400 kg/s and falls from 40 m height. The power is…

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Q: 25. The power needed to accelerate a projectile from rest to its launch speed v in a time t is 43.0…

A: Write the expression for the relation between the power needed and the energy of the projectile when…

Q: Q36. Alamp consumes 1000 J of energy in 10 s, what is its power? O 100 W O 1000 W O 100000W 1kW

A: Given that:- Energy=1000joule Time=10sec

Q: Find the useful power output (in W) of an elevator motor that lifts a 2300 kg load a height of 30.0…

A: We know that the formula of the power is given as  Power = EnergyTime  We know that the energy is…

Q: - maximum power transferred

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Q: Which is not a unit of energy?   what is the answer?    a) Newton   b) Joules   c) Ergs   d)…

A: Introduction: The energy of the object is defined as the capacity of doing work, and the unit of the…

Q: If 60 percent of the potential energy of water flowing over a dam can be converted to electricity,…

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Q: 23. A 2 100-kg pile driver is used to drive a steel I-beam into the T ground. The pile driver falls…

A: Given that, mass of the pile driver is 2100 kg, distance over which the driver falls freely is 5.00…

Q: The connected load of a consumer is 2 kW and his maximum demand is 1.5 kW. The load factor of the…

A: Given data The connected load is Po=2 kW The maximum demand is Pm=1.5 kW   The load factor is,…

Q: An electric motor is rated to have a maximum power output of 0.67 hp. If this motor is being used to…

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Q: ED light bulb uses energy of 3W.  What is the electrical energy is used if the light is on for 2…

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Q: You place an ice cube in a microwave oven. If it requires 32,165 J to melt the ice cube and the oven…

A: Given data:  Energy (E) = 32,165 J Power (P) = 98 W Required: Time in minutes

Q: A 2500-W electric motor raises a 500-kg sack from a height of 2.0 m to 24.0 m in 50 s. The…

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Q: 1 kW = ? A) 1000 W B) 10 W C) 100 W D) 10000 W

A: Watt is the unit of power. The power is defined as the work done in a unit time interval. The…

Q: The mechanical energy of an * :object is given by 1/2mv*v O EK+EP O Ek1+EP1=Ek2+EP2 O O O O

A: Mechanical energy is defined as the sum of energy possessed by motion (K.E) and energy possessed by…

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 100 g apple falls fom a tree fom a height of 2.8 m and reaches the ground at a speed of 5 m/s…

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Q: A ceiling fan at maximum speed consumes energy at 64.7 Watts and is used from 9:00 pm to 6:00 am.…

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Q: A certain rain cloud at an altitude of 1.75 km contains 3.20 × 107 kg of water vapor. How long would…

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Q: An electric chain hoist is used to lift a 250 kg crate.  The motor provides 2.1 kW of input power to…

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Q: How long would it take a 500 W electric motor to do 1.50 x 10^5 J of work?

A: GivenPower (P) = 500 WWork (W) = 1.50 × 105 J

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.