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1. A meter stick is rotated about the end labelled 0.00 cm, therefore that the other end of the stick moves during an arc length of 8.66cm. Through what arc length s does the 25.0-cm mark on the stick move?
2. The radius of the circle traced out by the second hand on a clock is 6.00 cm. In a time t the tip of the second hand moves during an arc length of 18.8 cm. Decide the value of t in seconds.
An electromagnetic wave strikes a 1.69-cm2 section of wall perpendicularly. The rms value of the wave's magnetic field is4.84 x 10-4 T. How long does it take for the wave todeliver 1120 J of energy to the wall?
a freezer compartment consists of a cubical cavity that is 2 m on a side. assume the bottom to be perfectly insulated.
The ammonia molecule NH3 has a permanent electric dipolemoment equal to 1.31 D, where 1 D = 1debye unit = 3.34 multiplied by10-30 C·m. Calculate the electric potential dueto an ammonia molecule at a point 51.0 nmaway along the axis of the dipole. (S..
A 168 kg polar bear standing 1.2 meters tall walks onto a floating sheet of ice 0.305 m thick. What is the surface area of the ice floe
Consider the situation where a 5 kg block sits on top of a 10 kg block. The two blocks rest on a horizontal frictionless surface. What is the acceleration of the "two block" system
Two parallel, uniformly charged, infinitely long wires carry opposite charges with a linear charge density ? = 2.15 ?C/m and are 6.69 cm apart. What is the magnitude of the electric field at a point midway between them and 54.3 cm above the plane ..
A small solid sphere, with radius 0.25 cm and mass 0.56 g rolls without slipping on the inside of a large fixed hemisphere with radius 15 cm, What is its kinetic energy at the bottom
A track is mounted on a large wheel that is free to turn with negligible friction about a vertical axis. What is the angular speed of the wheel
A fire hose ejects a stream of water at an angle of 31.20° above the horizontal. The water leaves the nozzle with a speed of 24.50 m/s. assume that the water behaves like a projectile, how far from a building should the fire hose be located to hit..
In one day, a 85 kg mountain climber ascends from the 1440 m level on a vertical cliff to the top at 2360 m . The next day, she descends from the top to the base of the cliff, which is at an elevation of 1310 m
A merry-go-round at a playground is a circular platform that is mounted parallel to the ground and can rotate about an axis that is perpendicular to the platform at its center. What is the tangential speed of another child
A 3.30 kilogram birdfeeder hangs from the tip of a 1.60 meter pole that sticks up from the ground at a 65.0 degree angle. Find the magnitude of the torque exerted on the pole
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