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[DOC File]Calculating Work and Power by Climbing Stairs
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(a) Calculate the electric power required to maintain the interior temperature at 22.0°C if the power is used in electric resistance heaters that convert all the energy transferred in by electrical transmission into internal energy.
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[DOC File]Physics 11 - Work, Power, Energy Worksheet
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9) Calculate the equivalent resistance of the circuit shown. 10) Determine the resistance of resistor R shown in the diagram. Questions 11 through 13 refer to the following: A 3.0-ohm resistor, an unknown resistor, R, and two ammeters, A1 and A2, are connected as shown below with a 12-volt source. Ammeter A2 reads a current of 5.0 amperes.
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[DOC File]ENERGY CALCULATIONS
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The power then travels 6000 feet through number 2/0, 15 kV, mine power feeder cable to an underground power center. The power center has a secondary voltage of 1040 volts and is rated 1350 kVA with 5.0% impedance. Power then travels 850 feet through number 2/0, 2 kV, shielded trailing cable to a continuous miner.
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[DOC File]Teaching Advanced Physics
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1. A major coal fired electrical power plant produces 13,000 MW-hr of electrical energy per day. a. Assuming that 1.0 MW-hr corresponds to 3,400,000 BTU’s, how many BTU’s are produced by the plant each day? b. Assuming that one pound of coal can produce 5000 BTU’s, how many pounds of coal are used by the plant each day? 2.
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3 Ways to Calculate Power Output - wikiHow
Discussion: How to calculate electrical power. Start with some theory, reinforcing the idea of voltage and using the equations: Δ E = V × Δ Q and Δ Q = I × Δ t. to derive Δ E = I × V Δ Q. The rate of doing work is the power: P = Δ E/ Δt. P = I × V. Discuss the significance of this using familiar examples; e.g. a 100 W lamp connected ...
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[DOC File]The first step in analyzing a power system is to get the ...
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Work and Power. 1. Calculate the work done by a 47 N force pushing a pencil 0.26 m. 2. Calculate the work done by a 47 N force pushing a 0.025 kg pencil 0.25 m against a force of 23 N. 3. Calculate the work done by a 2.4 N force pushing a 400. g sandwich across a table 0.75 m wide. 4.
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[DOC File]Work, Power and Energy Worksheet
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Calculate the work done by a 2.4 N force pushing a 400 g sandwich across a table 0.75 m wide._____ How far can a mother push a 20.0 kg baby carriage, using a force of 62 N, if she can only do 2920 J of work? _____ 6. If a small motor does 520 J of work for 10seconds, how much power is exerted?_____
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[DOC File]CIRCUITS WORKSHEET
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Calculate the power output of climbing the stairs slowly and rapidly in watts. Record your answers in the appropriate spaces below. Formula: Power = Work done climbing stairs (Joules) Time required to climb stairs (seconds) Power output of person climbing stairs slowly _____ watts
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How to calculate electrical power