When running on its 11.4 V battery, a laptop computer uses 8.3 W. The computer can...

When running on its 11.4 V battery, a laptop computer uses 8.3 W. The computer can run on battery power for 8.0 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?

Solutions

Expert Solution

genius_generous answered 2 years ago

Next > < Previous

Related Solutions

A damaged car battery with an emf of 11.4 V and an internal resistance of 0.01...

A damaged car battery with an emf of 11.4 V and an internal resistance of 0.01 ohms is connected to a load of 2.0 ohms. To help the battery, a second battery with an emf of 12.6 V and an internal resistance of 0.01 ohms is connected by jumper cables to the terminals of the first battery. Draw a diagram for the circuit. Find the current in each part of the circuit. Find the power delivered by the second battery.

The manufacturer of a particular battery pack for laptop computers claims its battery pack can function...

The manufacturer of a particular battery pack for laptop computers claims its battery pack can function for 8 hours on average. A random sample of 36 batteries was selected and placed to the test. The mean functioning time before recharge was 7.2 hours. We can assume that the population stand deviation is 1.9 hours. A competitor claims this is too high. Can you perform the appropriate test of hypothesis to determine whether the competitor is correct? Testing using alpha =...

2. Battery Level of Laptop Computers in Shipment A computer manufacturer ships laptop computers with the...

2. Battery Level of Laptop Computers in Shipment A computer manufacturer ships laptop computers with the batteries fully charged so that customers can begin to use their purchases right out of the box. In its last model, 85% of customers received fully charged batteries. To simulate arrivals, the company shipped 100 new model laptops (randomly picked from their warehouse) to various company sites around the country. Of 100 laptops shipped, 96 of them arrived reading 100% charged. Do the data...

When two unknown resistors are connected in series with a battery, the battery delivers 230 W...

When two unknown resistors are connected in series with a battery, the battery delivers 230 W and carries a total current of 5.00 A. For the same total current, 55.0 W is delivered when the resistors are connected in parallel. Determine the values of the two resistors.

Due to the erratic sales of its sole product – a high capacity battery for laptop...

Due to the erratic sales of its sole product – a high capacity battery for laptop computers – MEP Ltd, has been experiencing difficulty for some time. The company’s contribution format income statement for the most recent month is given below: Sales (19,500 units x $30 unit) Less: variable expenses Contribution Less: Fixed costs Net operating loss Required $ 585,000 409,500 175,500 180,000 (4,500) a. Compute the company C/S CM ratio and its break-even point in both units and dollars...

When my wife uses her laptop, if I touch her skin, I can feel a buzz....

When my wife uses her laptop, if I touch her skin, I can feel a buzz. She doesn't feel the buzz, but she can hear it if I touch her ear. So I'm guessing it's a faulty laptop, and she's conducting an electrical current. But why would she not feel anything, and what would it be that she would be hearing when I touch her ear? More info: The effect is only intermitent - it's pretty reliable in a single...

Due to erratic sales of its sole product— a high- capacity battery for laptop computers— PEM,...

Due to erratic sales of its sole product— a high- capacity battery for laptop computers— PEM, Inc., has been experiencing difficulty for some time. The company’s contribution format income statement for the most recent month is given below: Sales ( 19,500 units 3 $ 30 per unit) . . . . . . . . . $ 585,000 Variable expenses . . . . . . . . . . . . . . . . . . . ....

3. Due to erratic sales of its sole product— a high- capacity battery for laptop computers—...

3. Due to erratic sales of its sole product— a high- capacity battery for laptop computers— PEM, Inc., has been experiencing difficulty for some time. The company’s contribution format income statement for the most recent month is given below: Sales ( 19,500 units 3 $ 30 per unit) . . . . . . . . . $ 585,000 Variable expenses . . . . . . . . . . . . . . . . . . ....

Due to erratic sales of its sole product- a high capacity battery for laptop computers- PEM...

Due to erratic sales of its sole product- a high capacity battery for laptop computers- PEM Inc. has been experiencing financial difficulty for some time. The companies contribution format income statement for the most recent month is given below: Sales (19,500 units x $30 per unit) $585,000 Variable expenses 409,500 Contribution margin 175,500 Fixed expenses 180,000 Net operating loss $(4,500) 1) Compute the company's CM ratio and its break-even point in unit sales and dollar sales. 2) The president believes...

When switch S in the figure is open, the voltmeter V of the battery reads 3.08...

When switch S in the figure is open, the voltmeter V of the battery reads 3.08 V. When the switch is closed, the voltmeter reading drops to 2.98 V, and the ammeter A reads1.64 A. Assume that the two meters are ideal, so they don't affect the circuit.a) Find the emf.b) Find the internal resistance of the batteryc) Find the circuit resistance R.

Subjects