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A rocket with a mass of 2.7 × 106 kilogram has a relativistic kinetic energy of 2.7 × 1023 Joule. Determine how fast is the rocket moving?
A 45 kg woman stands up in a 60 kg canoe of length 5 meters.She walks from a point 1 meter from one end to a point 1 meter fromthe other end. how far does the canoe move during this process
A served tennis ball is typically in contact with the racquet for 30 ms and starts from rest. In the fastest serve recorded, How far did the ball travel during the serve
A horizontal spring with force constant k = 4.80N/m connects the other end of the rod to a vertical wall. The rod is in a uniform magnetic field B = 0.310T directed into the plane.
When 5.30* 10^5 J of heat is added to a gas enclosed cylinder fitted with a light frictionless piston maintained at atmospheric pressure, estimate the work done by the gas
A total charge of 1.96 μC is distributed uniformly over anentire region, giving a charge per volume of 245μC/m3. A Gaussian surface encloses 1.23μC of that charge. What is the volume of that entireregion?
A 190 g ball moving at 0.45 m/s in the + x- direction is subject to a 0.15 N force in the - y- direction for 2.5 s. Find the magnitude of the ball's momentum change
A 87g arrow is fired from a bow whose string exerts an average force of 130N on the arrow over a distance of 80cm. Illustrate what is the speed of the arrow as it leaves the bow?
An electric motor is plugged into a wall socket and is running at normal speed. Suddenly, some dirt prevents the shaft of the motor from turning quite rapidly. What happens to the back emf of the motor, and what happens to the current that the mot..
a uniform current density of 2.0 ampsm2 is flowing down a cylindrical region of radius 3.0 meters.a use amperes law to
An iron bolt of mass 75.0 g hangs from a string 32.4 cm long. The top end of the string is fixed. Find the magnetic force on the bolt
A Roman centurion fires off a vat of burning pitch from hiscatapult at 18.2m/s, 37 degrees above the horizontal. how long was the vat in the air
What average total force acted on the car. How far did the car travel during that time.
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