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What is the internal resistance of a 12 V car battery whoseterminal voltage drops to 9.90 V when the starter draws 73.8 A? What is the resistance of the starter?
A thin spherical shell made of plastic carries a uniformly distributed negative charge -7e-10 coulombs (indicated as -Q1 in the diagram). Two large thin disks made of glass carry uniformly distributed positive and negative charges 1.7e-05 coulombs an..
Two particles of mass m1 = 1.1 kg and m2 = 2.8 kg are traveling with velocities v1 = 4.5 m/s, and v2 = 2.5 m/s, What is the total momentum of this system
If the atmosphere warmed up by 5 degrees Celsius, would the atmospheric pressure at 5km above sea level increase or decrease, and by approximately how much
A ball is thrown straight upward. At 5.50 m above its launch point, the ball's speed is one-half its launch speed. What maximum height above its launch point does the ball attain?
An X-ray tube gives electrons, which start at rest, a constant acceleration over a distance of 23cm. If their final speed is 1.3 x 107 m/s, what are the time they spend accelerating
q1.a bat in a cave emits a sound pulse and receives an echo 0.22 second later. assuming that the speed of sound is 339
A solenoid is wound with 970 turns on a foam core 4.0 cm in diameter and 50 cm long. Calculate the induced emf that this coil produces
The distance between atoms in a solid is typically around 2.0 x 10-10 m What is the wavelength of an electron with a kinetic energy of 110 eV
Earth has a mass of 5.98 × 1024 kg. The average mass of the atoms that make up Earth is 40 u. How many atoms are there in Earth
The work function of tungsten is 4.50 eV. Calculate the speed of the fastest electrons ejected from a tungsten surface
A 1.05 kg mass is at the center of a uniform spherical shell of mass 1.10 x 10^20 kg and radius 1.03 x 10^6 m. Find the resultant gravitational force on the mass
Clarify how Einstein's contribution to understanding the force between the earth and the moon differed from Newton's. Include a short statement of Einstein's explanation in the answer.
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