When running on its 11.4 V battery, a laptop computer uses 8.3 W. The computer can run on battery power for 5.5 h before the battery is What is the current delivered by the battery to the computer? depleted. Express your answer with the appropriate units. I= Value Units Submit Request Answer Part B How much energy, in joules, is this battery capable of supplying? Express your answer in joules. Ηνα ΑΣφ U = J Submit Request Answer Part C How high off the ground could a 75 kg person be raised using the energy from this battery? Express your answer with the appropriate units. HẢ Value Units h =

When running on its 11.4 V battery, a laptop computer uses 8.3 W. The computer can run on battery power for 5.5 h before the battery is What is the current delivered by the battery to the computer? depleted. Express your answer with the appropriate units. I= Value Units Submit Request Answer Part B How much energy, in joules, is this battery capable of supplying? Express your answer in joules. Ηνα ΑΣφ U = J Submit Request Answer Part C How high off the ground could a 75 kg person be raised using the energy from this battery? Express your answer with the appropriate units. HẢ Value Units h =

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter10: Direct-current Circuits

Section: Chapter Questions

Problem 25P: A 12.0-V emf automobile battery has a terminal voltage of 16.0 V when being charged by a current of...

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A 12.0-V emf automobile battery has a terminal voltage of 16.0 V when being charged by a current of 10.0 A. (a) What is the battery’s internal resistance? (b) What power is dissipated inside the battery? (c) At what rate (in °C/min ) will its temperature increase if its mass is 20.0 kg and it has a specific heat of 0.300 kcal/kg • °C, assuming no heat escapes?
If electrical energy costs 0.12 per kilowatt-hour, how much does it cost to (a) burn a 100-W lightbulb for 24 h? (b) Operate an electric oven for 5.0 h if it carries a current of 20.0 A at 220 V?
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A 20.00-V battery is used to supply current to a 10-k resistor. Assume the voltage drop across any wires used for connections is negligible, (a) What is the current through the resistor? (b) What is the power dissipated by the resistor? (c) What is the power input from the battery; assuming all the electrical power is dissipated by the resistor? (d) What happens to the energy dissipated by the resistor?
When running on its 11.4 V battery, a laptop computer uses 8.3 W. The computer can run on battery power for 8.5 h before the battery is depleted. Part A. What is the current delivered by the battery to the computer?Express your answer with the appropriate units. Part B. How much energy, in joules, is this battery capable of supplying?Express your answer in joules. Part C. How high off the ground could a 75 kg person be raised using the energy from this battery?Express your answer with the appropriate units.
The charge (0.075 yC) stored in a component in your calculator is released and flows through a resistor in 1 millionth of a second (1 x 10^-6s) . Calculate the current that flows through the resistor and use it to calculate the resistance of the resistor. The calculator is powered by 4 AAA batteries in series, each 1.5 V, so the total voltage across the resistor is 6 V. Round your answer to the nearest tenth of an Ohm.
An electric car is designed to run on a bank of batteries with a total potential difference of 23 V and a total energy storage of 1.8×107 J. If the electric motor draws 7.0 kW, what is the current delivered to the motor? Answer in units of A. 012 (part 2 of 2) If the electric motor draws 7.0 kW as the car moves at a steady speed of 24.0 m/s, how far will the car travel before it is “out of juice"?
There's a good chance you're completing this HW on a laptop. A typical laptop uses about 15 W of power provided by a battery operating at 11.5 V. Under such conditions, 10 hrs is a typical lifetime of the battery. What is the current delivered by the battery to the laptop in amps? Give your answer to 3 significant digits.
1.00 MQ A conducting sphere is charged by an emf source E through a 1.00 M2 resistor. When the sphere is fully charged, it has 2 µC charge. The highest current during the charging was 1 mA. What is the electrical potential energy of the sphere when it is fully charged? Give your answer in mJ. men yu
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When running on its 11.4 V battery, a laptop computer uses 8.3 W. The computer can run on battery power for 9.0 h before the battery is depleted.a. What is the current delivered by the battery to the computer?b. How much energy, in joules, is this battery capable of supplying?c. How high off the ground could a 75 kg person be raised using the energy from this battery?
Three resistors, R1= 30 Ω, R2= 77 Ω, and R3=R, are connected in parallel with a 12 V battery. A) The total current flowing through the battery is 0.88 A. Find the value of resistance R. Express your answer using two significant figures. B) Find the current through each resistor. Enter your answers numerically separated by commas. Express your answers using two significant figures.