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A cube of edge length = 3.0 cm is positioned .There is a uniform magnetic field , =+8.0T throughout the region of 30 degrees angle with x axis find the magnetic flux though the top of a box?
A Carnot engine works between temperatutes T1 = 495K and T2 = 302K. What is the Carnot coefficient of performance, KC, of the refrigerator
A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a frictionless, vertical axle. What is the mass of the wheel
A small statue has a height of 3.5 cm and is placed in front of a concave mirror. The image of the statue is inverted, 1.5 cm tall, and located 12 cm away from the mirror. Find the focal length of the mirror.
A 1000 Hz sound travels through pure oxygen. The wavelength of the sound is measured to be 0.65m. What is the speed of sound in oxygen?
The activity of a radioactive source decreases by 5.2% in 28 hours. What is the half-life of this source
he diffraction pattern is viewed on a screen 55.5 cm from the slit. The distance on the screen between the third order minimum and the central maximum is 1.91 cm. What is the width of the slit
A school yard teeter-totter with a total length of 5.2m and a mass of 36kg is pivoted at its center. A 19 kg child sits on one end of the teeter-totter.
Air enters the compressor of a gas turbine plant at ambient conditions of 100 kPa and 25 degrees C with a low velocity and exits at 1 MPa and 347 degrees C with a velocity of 90m/s. the compressor is cooled at a rate of 1500 kJ/min and the power i..
How fast should the platform move, v_p, for the person to detect a beat frequency of 7.00 Hz ? Take the speed of sound to be 344 m/s. Express your answer numerically in meters per second.
An ice cube is floating at the top of a glass of water. After it melts completely, will the water level rise, fall, or stay the same? Explain your answer.
The length of a moving spaceship is 27.0 m according to an astronaut on the spaceship. If the spaceship is contracted by 14.5 cm according to an Earth observer, what is the speed of the spaceship
A point charge with charge q1 = 2.80?C is held stationary at the origin, How much work W is done by the electrostatic force on the moving point charge
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