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A 5.0 g bullet leaves the muzzle of a riffle with a speedof 320 m/s. What force (assumed constant) is exerted on the bulletwhile it is traveling down the 0.82 m long barrel of the riffle?
An electron is accelerated by a constant electric field of magnitude 280 N/C. Find the acceleration of the electron
If a Capacitance of PPC is 12 PF. Distance between its plates is reduced to half, What would the new capacitance of the capacitor
Two identical wheels are moving on horizontal surfaces. The center of mass of each has the same linear speed. However, one wheel is rolling, What is the total kinetic energy of each wheel
Explain why you are safe and unaffected inside a car that is struck by lightning. Also explain why it might not be safe to step out of the car just after the lightning strike, with one foot in the car and one on the ground.
At what angle is the curve banked? The acceleration due to gravity is 9.8 m/s2.
People who do chin-ups raise their chin just over a bar (the chinning bar), supporting themselves only by their arms. Find the force his arms must exert on him during the accelerating part of the chin-up
In a certain RLC circuit, a46-?resistor, a11-mH inductor, and a 5-µF capacitor are connected in series with an AC power source for which Vrms=12V andf= 100 Hz. Calculate the phase between the current and the voltage.
When a current flows in an aluminum wire of diameter 4.97mm, the drift speed of the conduction electrons is 1.49x10^-4 m/s. What is the electron current in the wire
In an internal combustion engine, air at atmospheric pressure and a temperature of about 20 ?C is compressed in the cylinder by a piston to 18.0 of its original volume, Estimate the temperature of the compressed air
What is the speed of a car going v = 1mph in SI units? Notice that you will need to change from miles to meters and from hours to seconds. You can do each conversion separately. mke Use of the facts that 1 mile = 1609m and 1hour = 3600s.
A 12 kg object oscillates at the end of a vertical spring that has a spring constant of 1.70 x10^4 N/m. The effect of air resistance is represented by the damping coefficient b = 3N•s/m. Find the time interval that elapses while the energy of the ..
A mass is attached to a spring. It oscillates at a frequency of 4/? Hz when displaced a distance of 7.00 cm from equilibrium
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