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You have two capacitors, one with capacitance 12.3 × 10-6 F and the other of unknown capacitance. You connect the two capacitors in series with a voltage difference of 321 V applied across the capacitors. You discover that, as a result, the unknown capacitor has a charge of 0.00199 C. Find its capacitance.
An ideal gas at 20 C consists of 2.2 X 10^{22} atoms. 4.3 J of thermal energy are removed from the gas. What the new temperature in C.
The beam emerging from a ruby laser (wavelength 694.3 nm) passes through a circular aperture 6.2 mm in diameter. what is the angular spread of the beam
The flywheel of an engine has a moment of inertia 2.2 {rm kg} cdot {rm m} ^{2} about its rotation axis. What is its final kinetic energy.
A race car has a mass of 702kg. It starts from rest and travels 42 m in 3 s. The car is uniformly accelerated during the entire time. What net force is exerted on it.
A uniform solid sphere of radius 0.503 m and mass 15.7 kg turns counter clockwise (when viewed from above) about the vertical axis through its center. Find its vector angular momentum when its angular speed is 3.08 rad/s. Wouldn't you use the formula..
Two point charges, +3.75 µC and -6.05 µC, are separated by 1.21 m. What is the electric potential midway between them
A 20 wood ball hangs from a 1-long wire. The highest tension the wire can withstand without breaking is 600. A 0.90 projectile travelling horizontally hits and embeds itself in the wood ball. What is the largest speed this projectile can have with..
A small turtle moves at a speed of 165 furlongs per fortnight. Find out the speed of the turtle in centimeters per second. Note that 1 furlong = 220 yards and 1 fortnight = 14 days.
What is modify in frequency ff - fi
A 6,400-kg truck runs into the rear of a 1,000-kg car that was stationary. What was the speed of the truck before the collision
A rocket moves upward, starting from rest with an acceleration of 29.9 m/s2 for 3.31 s. It runs out of fuel at the end of the 3.31 s but does not stop. Evaluate how high does it rise above the ground?
The resistance of a copper wire of length L meter is 0.1 ohms. If the diameter of the wire is 0.045cm, find out its specific resistance.
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