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In a demonstration, a 0.5kg magnet isdropped to the edge of a rotating circular steel plate. the mass ofthe plats is 5kg, the radius 0.3m. The angular speed before the magnet is attachedto the plate is 2 rev/s, what is the angular speed after the magnet is attached to the plate? How muchkinetic is lost due to the collision?
a 1.0m long 1.0 mm diameter copper wire carries a current of 50.0 a to the east. suppose we create a magnetic field
A man and a boy carry a canoe 5.80 m long and weighing 371 N. The canoe is held overhead in a horizontal position. How far from the opposite end should the man stand
A standing wave on a 1.70 m long horizontal string displays three loops when the string vibrates at 125 Hz. What is the function describing the standing wave
a motor starts from rest with an angular acceleration of 12. rad/s ^2 what is the motor angular speed 4.0s later? how many revolutions does it make in this period of time
A 60 kg man is ice-skating due north with a velocity of 6.0 m/s when he collides with a 36 kg child. What is the direction of the child's velocity just before the collision
Use Pascal's principle. Given that Fout is 68 lb., the areas of the output and input cylinders are Aout 21 in2 and Ain 6 in2, what is the input force
Ship A is located 3.2 km north and 2.1 km east of ship B. Ship A has a velocity of 22 km/h toward the south and ship B has a velocity of 40 km/h in a direction 37° north of east. At what time is the separation between the ships least
a 2021-kg car is moving down a road with a slope grade of 13 while slowing down at a rate of 3.4 ms2. what is the
A flask is filled with 1.55 L (L = liter) of a liquid at 98.7 °C. When the liquid is cooled to 15.7 °C, its volume is only 1.32 L, however. obtain the coefficient of volume expansion of the liquid
A container of volume V is divided by partitions into three parts containing one kilomole of helium gas, Calculate the kilomole fraction
A 2.03 kg book is placed on a flat desk. Suppose the coefficient of static friction between the book and the desk is 0.602 and the coefficient of kinetic friction is 0.327. How much force is needed to begin moving the book
in a classical model of the hydrogen atom the electron movesaround the proton in a circular orbit of radius 0.053 nm.
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