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1. Pictures below show the loads hanging from the ceiling of an elevator that is moving at constant velocity. Find the tension in each of three strands of cord supporting each load.
2. Angle Φ=15 degree. Assuming the block start from the rest at the top and that the leghth of the incline is 2m. Find
a) Acceleration of the block
b) its speed when it reaches the bottom of the incline
3. 5.00 kg object placed on frictionless, horizontal table is connected to a cable that passes over a pulley and then is fastened to a hanging 9.00kg object as shown below. Draw free body diagram of both. Find the acceleration of both objects and tension in the string?
4. 2 blocks of mass 3.5Kg and 8.0Kg are connected by a massless string that passes over a frictionless pulley. The inclinces are fictionless. Find
a) The magnitude of acceleration of each block
b) The tension in the string
a particle moves so that its position in meters as a function of time in seconds is r i 2t2j 4t k . use the following
A skydiver of mass 50 kg falls vertically downward from an initial state of rest at t=0. Two forces act on the skydiver, her weight, and a drag force proportional to her velocity. The drag constant is b=9.00 Ns/m. Find the terminal velocity of the..
A cyclist is coasting at 12m/s when she starts down a 460m long slope that is 30 m high. The cyclist and her bicycle have a combined mass of 70 kg. A steady 15N drag force due to air resistance acts on her as she coasts all the way to the bottom. Wha..
a particle with a mass of 2.5times10-5 kg and a charge of 3.0 uc is released in a parallel plate uniform horizontal
Because of dissipative forces, the amplitude of an oscillator decreases 5.00% in 10 cycles. By what percentage does its energy decrease in ten cycles
What plate separation is needed if the capacitance is to be 1710 pF? Suppose that the space between the plates is filled with air? (Dielectric constant for air is 1.00059)
suppose you construct a barometer filled with an oil d1.25gcm3 in the vertical tube. if the atmosphere has a pressure
A mass spring system had k= 55.6 N/m and m=0.41 kg. Find the frequency of its simple harmonic motion
A -10.0 nC point charge and a +20.0 nC point charge are 15.0 cm apart on the x-axis. What is the direction of the electric field at the point on the x-axis, between the charges, where the electric potential is zero
question a bowling ball is released from rest and and rolls without slipping down an inclined plane at 18deg to the
A hunter who is a bit of a braggart claims that from a distance of 1.7 km he can selectively shoot either of two squirrels who are sitting 8.0 centimeters apart on the same branch of a tree. Determine the diameter of the pupils of his eyes
A 4.5kg ball with a velocity of 4.0m/s in the+x-direction collides head-on elastically with a stationary 1.8kg ball. What is the speed of the first ball after the collision
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