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An automobile battery has an emf of 12.60 V and an internal resistance of 0.084 0 ?. The headlights together have an equivalent resistance of 5.800 ? (assumed constant).(a) What is the potential difference across the headlight bulbs when they are the only load on the battery? (Give your answer to four significant figures.)............V(b) What is the potential difference across the headlight bulbs when the starter motor is operated, requiring an additional 35.0 A from the battery? (Give your answer to four significant figures.).............V
The larger the mass of a star, the shorter its Main Sequence lifetime becomes. Estimat the Main Sequence lifetime of a star with a mass of 6 Msolar
A car of mass m is on a frictionless roller coaster track. How hard does the track push on the car at the top of the loop
Two air-track gliders m1 and m2 are joined together with a light string. What is the tension in the cord joining gliders
If the flywheel on my truck has a mass of 22.8Kg a radius of .4572 meters and is rotating at 250 revolutions per minute
Calculate Earth's average speed relative to the Sun (in m/s). According to my book, the answer is 3.0x10^4 m/s
Compute the numerical value for acceleration
A small wooden block with mass 0.850 kg is suspended from the lower end of a light cord that is 1.54 m long. The block is initially at rest. What is the initial speed of the bullet
The maximum tension that a 0.5m string can tolerate is 14N. A 2.5kg ball is attracted to the string being whirled in a vertical circle. What is the maximum speed the ball can have at the top of the circle.
q1. stationary bicycle is raised off the ground and its front wheel m 1.3 kg is rotating at an angular velocity of
A 560N force is pulling a 105.0kg crate across a horizontal floor. The force acts at an angle of 34.0o above the floor. find the work done by the pulling force
A circular wire loop of radius 14.1 cm carries a current of 2.51 A. What is the magnitude of the torque acting on the loop
A 1,200 kg car going 25 m/s is brought to stop using its brakes. Let's assume that a total of approximately 20 kg of iron in the brakes, What was the car's original kinetic energy
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