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A) A 4500 ohm resistor is joined in series with a 65 µF capacitor. Find the capacitive time constant of this combination?
B) If a 15 V battery is suddenly connected across this RC combination, determine how long will it take for the capacitor voltage to reach 14 V?
astronauts use a centrifuge to simulate the acceleration of a rocket launch. the centrifuge takes 40.0 s to speed up
A 10,000 kg railroad car is rolling at 2 m/s when a 4000 kg load of gravel is suddenly dumped in, What is the railroad car's speed
An accelerator produces a beam of protons with a circular cross section that is 2.0 mm in diameter and has a current of1.1 mA. What is the number density of the protons in the beam
David is driving a steady 21.0 when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.70 at the instant when David passes. How far does Tina drive before passing David.
A thin flashlight beam traveling in air strikes a glass plate at an angle of 52 degree with the plane of the surface of the plate. find what angle will the beam make with the normal in the glass
Clarisse invests $61500 in money-market accounts at three different banks. Bank A pays 2% interest per year, bank B pays 2.5%, How much did she invest in each bank
When a potential difference of 140 V is applied to the plates of a parallel-plate capacitor, plates carry a surface charge density of 27 nC/cm2. What is the spacing between the plates.
write down the lorentz transformation matrix for motion along the z direction with velocity v.do the same for motion
The atomic planes in a crysral are spaced d = 0.50 nm apart. These planes are used in a diffraction experiment with X-rays with ? = 0.05 nm. What are the diffraction angles for the first three bright fringes
A block of mass 2.0 kg is at rest on an incline with variable angle (theta). The distance from the block to the bottom end of the incline is 300m. if the incline is set to 40 degrees, how long will it take the block to reach the bottom if it starts..
A transparent oil with index of refraction 1.18 spills on the surface of water (index of refraction 1.33), determine the thickness of the oil slick
the blade of a windshield wiper moves through an arc of 90deg in a time of 0.40s. the tip of the blade moves on the arc
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