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A wedding ring is tossed into the air and given a spin, resulting in an angular velocity of 19.3 rotations per second. The rotation axis is a diameter of the ring. The magnitude of the Earth's magnetic field is 4.79·10-5 T at this location. If the maximum induced voltage in the ring is 1.272×10-6 V, what is the diameter of the ring?
A 20-N horizontal force pushes an object along a rough floor so that the object moves with a constant velocity of 7.0 m/s
what are the dimensions of the box as measured by an observer moving with a speed of 0.82 c parallel to one of the
A cylinder with a piston contains 0.300 moles of oxygen at 2.20×10^5 pa and 340 K . The oxygen may be treated as an ideal gas. Find the internal-energy change during the final cooling
a block of mass m=0.2kg , in simple harmonic motion, has an amplitude of 3.5cm and a maximum speed of 70 cm/s. What is the angular frequency for the oscillation in rad/s?
A 250 g block of wood hangs from a light string 0.78 m long. The block is shot with a bullet of mass 4.2 g, what was the velocity of the bullet just before it hit the block
An open organ pipe and an organ pipe that is closed at one end both have langths of .52 m at 20 degrees celsius. What is the fundamental frequency of each pipe in hertz
q1. a rectangular block of ice 13 m on each side and 1.4 m thick floats in sea water. the density of the sea water is
A tungsten target is struck by electrons that have been accelerated from rest through a 62.0-kV potential difference. Find the shortest wavelength of the radiation emitted
Water leaks out of a dam through a small hole 4.2 m below the level of the water behind the dam. Find the speed of the water emerging from the hole
A 17-kg projectile is fired at an angle of 60° above the horizontal and with a speed of 240 m/s. At the highest point of its trajectory the projectile explodes into two fragments with equal mass, one of which falls vertically with zero initial spe..
Which state is best illustrates kinetic friction
An RC circuit contains a resistor of value R = 430 ? and a capacitor with C = 0.05 F. how long would it take to discharge the capacitor to 15% of V1
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