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A typical car battery is composed of six, 2.1 V cells arranged in series to have an Emf of 12.6 V. For this problem, we will assume a maximum current from the battery of 300.0 A . The starter motor draws about 150 A for 0.80 s to start the car engine. This current is drawn from the battery through a copper wire 5.0 mm in diameter and 1.2 m long. (Typically, the negative side of the battery and all electronics in a car are connected to the chassis to ensure a ground with very low resistance)
a) What is the internal resistance of the battery?
b) What is the resistance of the copper wire?
c) What will the terminal voltage of the battery be while the engine is starting?
d) How much power does the battery supply to the starter motor?
e) How much energy does the starter motor use?
f) How much charge passes through the starter motor?
g) How many electrons pass through the starter motor?
Imagine two 5.0 g bags of protons, one at the earth's north pole and the other at the south pole. Calculate the electrical repulsion that each bag exerts on the other.
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define the rock's tangential deceleration. You want to visit your friend in Seattle during spring break. To save money, you decide to travel there by train. Unfortunately, your physics final exam took the full 3 hours.
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An archer pulls her bow string back 0.40m by exerting a force that increases uniformly from zero to 25 N. How much work does the archer do in pulling back the bow.
A series ac circuit contains a 250? resistor, a 20.0mH inductor, a 3.50?F capacitor, Find the average power delivered to the entire circuit
A square plate of copper with 47.0 cm sides has no net charge, Find the charge density of each face of the plate
A person 25 centimeters in front of a concave makeup mirror sees an upright image magnified by a factor of two. Draw a sketch to locate the image of the person
While rearranging a dorm room, a student does 276 J of work in moving a desk 1.7 m. What was the magnitude of applied horizontal force.
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