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The period of a pendulum is measured to be 3.00sin the non-moving frame of the pendulum. What is the periodas measured by an observer moving at a speed of 0.950c with respectto the pendulum?
in a potentiometer arrangement a cell of emf 1.25 v gives a balance point at 35.0 cm length of the wire. if the cell is
A woman walk up a flight of stairs. The gain in her gravitational potential energy is U, and her power output isP. what's her gain in potental energy
A 55.0 kg ice skater is moving at 4.00 m/s when she grabs theloose end on a rope, the opposite end of which is tied to a pole. Determine the force exerted by the horizontal rope on her arms
Light is reflected from a glass coffee table. When the angle of incidence is 50.0°, What is the index of refraction of the glass
A young woman buys a sports car that can accelerate at the rate of 5.47m/s2. She decides to test the car by drag racing with another speedster, Stan Speedy. Both start from rest, but experienced Stan leaves the starting line 1.47s before Kathy. Stan ..
Two pucks collide on an air hockey table. Puck A has a mass of 30 g and is initially traveling in the +x direction at 6.0 m/s. Calculate puck A's final speed
Determine the time it takes for the particle. A particle is traveling in a straight line at a constant speed of 28m/s. Suddenly, a constant force of 15.6N acts on it, bringing it to a stop in a distance of 66.8m.
A male turkey is moving towards his mate at a speed of 20.0 m/s while gobblng at a frequency of 1800 Hz. what frequency of sound does the stationary hen turkey hear
A window washer is standing on a scaffold supported by a vertical rope at each end. the scaffold weighs 200N and is 3.21 m long. assume the 900N worker stands 1.44 m from one end of the scaffold. what is the force on the rope farther from the work..
The catapults on the USS George H.W. Bush can launch aircraft from rest to a speed of 150 mph over a distance of 270 feet. Find the acceleration of the aircraft
an electron gun emits 17 times 1014 electrons per second that travel at a speed of 0.03 c. the electron beam has a
When light of wavelength 380 nm falls on a cesium surface,electrons are emitted that have a maximum kinetic energy of 1.13eV. Find the work function of cesium
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