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A pendulum in a spaceship traveling through space at a speed of 0.905c relative to Earth has a period of 7.90 s as measured by an astronaut in the spaceship.
(a) What is the period as measured by an observer on Earth?
The water supply of a building is fed through a main pipe9.00 cm in diameter. find the speed at which the water leavesthe faucet
This time, William Tell is shooting at an apple that hangs on a tree . The apple is a horizontal distance of 20.0m away and at a height of 4.00m above the ground, what is the arrow's initial velocity
An object has a volume of 0.25 m^3 and weighs 3000 N. What will be its apparent weight when submerged in water
An arrow is placed 28.7 cm in front of a convex lens (f=15.0 cm). The convex lens is followed by a concave lens (f= 21.5 cm) 12.8 cm fro the convex lens. obtain the magnification of the image
A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 24 degrees below horizontal. Find the length of time the car is in the air
A canoe has a velocity of 0.52m/s southeast relative to the earth. The canoe is on a river that is flowing 0.50 m/s east relative to the earth. Find the magnitude of the velocity of the canoe
Explain the characteristics of supersonic motion and the formation of shock waves. Explain the formation of beats by the superposition of sounds of two closely spaced frequencies
Two spherical bodies have masses of 60 and 80 kg, respectively. Determine the force of gravity acting between them if the distance from center to center of the bodies is 500 mm.
An object is moving in simple harmonic motion with amplitude 0.28 m and total energy 2.5 J. What is the total energy of the system now
A wire whose resistance si R120ohm is cut in 7 equally longpecies, which are then connected in parallel way. What is the resistance of the parallel contribution
A flat circular coil with 146 turns, a radius of 2.14 x 10-2 m, and a resistance of 0.506 ? is exposed to an external magnetic field that is directed perpendicular to the plane of the coil. The magnitude of the external magnetic field is changing at ..
A turntable rotates counterclockwise at 78 rpm. A speck of dust on the turntable is at 0.45 rad at t=0, Determine the angle of the speck at t = 8.0 second
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