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The voltage across a resistor is equal to the product of the current through the resistor and the resistance of the resistor. When two resistors are connected in series the same current passes through them. If a 10 ? resistor is connected in series with a 50 ? resistor and a current of 100 milliamps passes through them when a battery is connected, what are the voltages across each of these resistors? What is the potential difference of the battery?
A plate carries a charge of -3.9 µC, while a rod carries a charge of +2.2 µC. How many electrons should be transferred from the plate to the rod, so that both objects have the same charge.
A dog pulls on a pillow with a force of 2.2 N at the angle of 40° above the horizontal. Find the x and y components of the force.
An automobile club plans to race a 700kg car at the local racetrack. The car needs to be able to travel around several 155m radius curves at 87km/h.
A tungsten wire has a radius of 0.089 mm and is heated from 20.0 to 1362 oC, When 100 V is applied across the ends of the hot wire, a current of 1.8 A is produced
select the quantity that has changed(velocity or speed) for a car that travels north at 88 km/h and then turns east while continuing to move at 88 km/h. define your answer.
The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm (red) and 486 nm (blue). Light from a hydrogen lamp illuminates a diffraction grating with 460 lines/mm , and the light is observed on a screen 1.7 m b..
A sinusoidal wave is traveling along a rope. The oscillator that generates the wave completes 38.0 vibrations in 26.0 s, What is the wavelength of the wave
A jet aircraft is flying at constant altitude. At t1 = 0 it has components of velocity vx = 150 m/s and vy = 130 m/s, What is the acceleration's magnitude and direction during this time interval
A compound microscope has an objective lens of focal length 10.50 with an eyepiece of focal length 14.80, and it produces its final image at infinity. The object to be viewed is placed 2.00 beyond the focal point of objective lens.
A parallel-plate capacitor is to be constructed by using, as a dielectric, rubber with a dielectric constant of 3.20, What is the minimum area the capacitor plates can have
what is the distance of closest approach of the two particles. explain two ways in which you could you this equipment to raise the crate.
find What is the impulse delivered by the bat.
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