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A rod is lying on the top of a table. One end of the rod is hinged to the table so that the rod can rotate freely on the table top. Two forces, both parallel to the table top, act on the rod at the same place. One force is directed perpendicular to the rod and has a magnitude of 34 N. The second force has a magnitude of 64 N and is directed at an angle ? with respect to the rod. If the sum of the torques due to the two forces is zero, what must be the angle ??
A 0.60-T magnetic field is directed perpendicular to the plane of a circular loop of radius 0.40 m. What is the magnitude of the magnetic flux through the loop
A pair of eyeglass frames is made of epoxy plastic. At roomtemperature (assume 20 C), the frames have circular lensholes 1.53 cm in radius. To what temperature must the frames beheated in order to insert lenses 1.55 cm in radius?
An elevator has mass 540 kg , not including passengers. What is the maximum number of passengers that can ride in the elevator
A 78.05kg fisherman is sitting in his 33.25kg fishing boat along with his 13.49kg tackle box. What is the recoil speed of the fisherman and his boat
Find the acceleration of an elerton in this field. What is its speed after 50ms.
The lowest pedal note on a particular large pipe organ has a fundamental frequency of 15.7 Hz. What is the length of pipe between the sounding hole and the open end
On an old-fashioned rotating piano stool, a woman sits holding a pair of dumbbells at a distance of 0.555m from the axis of rotation of the stool. Compute the kinetic energy of the system before the dumbbells are pulled in
High-speed stroboscopic photographs show that the head of a 190-g golf club is traveling at 58 m/s just before it strikes a 46-g golf ball at rest on a tee, Find the speed of the golf ball just after impact
A candle is placed 16.85 cm in front of a convex mirror. When the convex mirror is replaced with a plane mirror, Find the focal length of the convex mirror
A wheel 2.25 m in diameter lies in a vertical plane and rotates about its central axis with a constant angular acceleration of 3.50 rad/s2, find the angular position of the point P
In 2.0 minutes, a ski lift raises 4 skiers at constant speed to a height of 170 m. The average mass of each skier is 65.00 kg. What is the average power provided by the tension in the cable pulling the lift.
how long does it take to raise the temperature of the air in a good-sized living room by ? note that the specific heat
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