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A rod is lying on the top of a table. One end of the rod is hinged to the table therefore 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 31 Newton. The second force has a magnitude of 64 Newton and is directed at an angle θ with respect to the rod. If the sum of the torques due to the two forces is zero, determine what must be the angle θ?
A convex mirror has a focal length of -11 cm. A lightbulb with a diameter of 6.1 cm is placed 60.0 cm from the mirror. Locate the image of the lightbulb
A 300 N box is placed on a frictionless inclined plane that makes a 22.0° angle with the horizontal. What is the normal force of the ramp on the box
Two pints A and B on the surface of the earth are at the similar longitude and 60o apart in latitude assume that an earth quake at point A creates a P wave that reaches point B by traveling straight during the body of the earth at constant speed of 7..
One solenoid is centered inside another. The outer one has a length of 46.0cm and contains 6600 coils, Find the emf induced in the inner solenoid
A 3800kg truck is parked on a 12 degree slope. How big is the friction force on the truck
need these short essay questions done asap. valid reputable sources are needed as is a works cited. interned sources
A toy cannon uses a spring to project a 5.24 gram soft rubber ball. The spring is originally compressed by 4.95 centimeter and has a force constant of 7.94 N/m. Determine at what point does the ball have maximum speed
A transverse traveling wave on a cord is represented by D = 0.25 sin (6.8x + 28t), Determine maximum and minimum speeds of particles of the cord
Two electrons are fixed 2.1 cm apart. Another electron is shot from infinity and comes to rest midway between the two. What was its initial speed
At what angle is the curve banked? The acceleration due to gravity is 9.8 m/s2.
A 2.0-cm-diameter spider is 1.50m from a wall. Determine the focal length of a lens that will make a half-size image of the spider on the wall
a boat traveling at a speed of 12km/h takes 36 minutes to travel 9 km down a river. How long will it take the boat to return to the starting point
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