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A 2-kg mass at the end of a 1.5M rod is rotating in a vertical circle with a constant angular velocity of 8.5 radians/sec. What is the tension in the rod at 0 degrees, 90 degrees, and 270 degrees? I am having problems with these circular motion problems.
In a new (inelastic) collision, the same two bumper cars with the same initial velocities now latch together as they collide. What is the final speed of the two bumper cars after the collision
A gyroscope with rotational inertia 6.4 10-3 kg·m2 is precessing in a horizontal plane at 0.46 rad/s under the influence of a 0.34 N·m torque caused by a force pointing vertically downward
Two identical uniform poles of mass 50 kg and linear mass density 15 kg/m are supported by pivots 2 m apart on level ground. what angle do the poles make with the vertical
Two waves are traveling in the same direction along a stretched string. The waves are 45.0° out of phase. Each wave has an amplitude of 7.00 cm. Find the amplitude of the resultant wave
with unaided vision a person can focus on objects that lie at distances between 5.0 m and .5 m away from his eyes. find
A hard-boiled egg of mass 53.0g moves on the end of a spring with force constant 25.6 N/m. Calculate the magnitude of damping constant
The electrric field between the plates of a parallel-plate capacitor is horizontal, uniform, and has a magnitude E. What is the magnitude of the electric field
a car battery has a rating of 170 ampere-hours. this rating is one indication of the total charge that the battery can
A subway train starts from rest at a station and accelerates at a rate of 1.56m/s2 for 13.7s, Find the total distance covered
A 26 kg gun is standing on a frictionless surface. The gun fires a .0573 kg bullet with a muzzle velocity of 323 m/s. The positive direction is that of the bullet immediately after the gun was fired. compute the momentum of the gun immedately afte..
A 3.00-kg block starts from rest at the top of a 30.5° incline and slides 2.00 m down the incline in 1.45 s. Find the frictional force acting on the block
a 200 g ball of putty falls vertically into a 2.50 kg cart that is rolling freely at 2.00 ms on a horizontal surface.
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