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A bullet of mass 4.5 gram strikes a ballistic pendulum of mass 4.4 kilogram. The center of mass of the pendulum rises a vertical distance of 7.7 centimeter. Assuming that the bullet remains embedded in the pendulum, calculate what the bullet initial speed?
A circular surface with a radius of .057 m is exposed to a uniform external electric field of magnitude 1.44 x ten to the 4th N/C. The electric flux through the surface is 78N m2/C. What is the angle between the direction of the electric field and th..
a 1600 kg car is moving westward with a speed of 20 ms and a 2800 kg truck is traveling east with a speed of 14 ms.
A Futuristic design for a car is to have a large disk-like flywheel within the car storing kinetic energy. The flywheel has mass 370 kg with a radius of0.50 m and can rotate up to 520 rev/s. Assume all of this stored kinetic energy could be transferr..
A spaceship moves with a speed v = 0.86c relative to a space platform that has a landing strip 4500 m long. What is the apparent length of the landing strip
A long solenoid that has 1,060 turns uniformly distributed over a length of 0.395 m produces a magnetic field of magnitude 1.00 10-4 T at its center
The measured conductivity of Cu at Room Temperature is 5.88 x 107/ohm.m and the Fermi energy for Cu is 7.03 eV, Find the mean free path( mfp) of electrons in copper
Suppose that 1.00 mole of an ideal monotomic gas begins at a temperature of 20.0 C. The gas starts at 1.00 atmosphere and triples the volume at constant pressure. What is the new temperature and how much work was done? How much heat was added or s..
What would the first allowed orbital be for a particle whose mass is 2 x 10 ^ -39 kg and velocity was 30% the speed of light
A +4.5-µC charge experiences a 0.59 N force in the positive y direction. If this charge is replaced with a -1.0 µC charge, what force will it experience
An air hockey puck is attached to a string with a length of .45 m and is set in a circular motion with a period of 2.0 s. What is the tangential speed of the puck
You slide a 325 Newton trunk up a 20o incline plane with a constant velocity by exerting a force of 211Newton parallel to the inclined plane. Determine the size and direction of the friction force
question two capacitors are connected in parallel across the terminals of a battery. one has a capacitance of 2.0
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