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Two pendulum bobs have masses MA = 3 kg and MB = 2 kg and equal lengths L as shown in the figure. Bob A is initially held horizontally while bob B hangs vertically at rest. Bob A is released and collides with bob B. The two masses then stick together and swing upward to the right to a maximum angle? What is the maximum swing angle?
A uniform ladder 6.58 m long weighing 460 N rests with one end on the ground and the other end against a perfectly smooth vertical wall, Find the friction force that the floor exerts on the ladder
Imagine Punch lives on the Earth at rest. Judy traveling past the earth with a speed of 0.600 c. What is the speed of the rocket seen by Judy in terms of the speed of the light
A silver wire has a cross sectional area A = 2.0 mm2. A total of 9.4 × 1018 electrons pass through the wire in 3.0 s. What is the drift velocity of these electrons
A 130kg mail bag hangs by a vertical rope 3.6mlong. A postal worker then displaces the bag to a position 2.2m sideways from its original position, What horizontal force is necessary to hold the bag in the new position
The experiment done in lab is repeated, using a ball that has unknown mass m. You plot your data in the form of f?2 versus M/L, calculate the mass m of the ball
Light of wavelength 400 nm is incident normally on a film of water 1.0 µm thick. The index of refraction of water is 1.33. What is the wavelength of the light in the water
Two large metal plates of area 1.20m2 face each other. They are 4.8cm apart and have equal but opposite charges on their inner surfaces. The strength of the electric field between them is 63N/C.what is the magnitude of the charge on each plate.
A charge of - 0.580uC exerts an upward force of magnitude 0.170N on an unknown charge which is a distance of 0.300m directly below it. What is the unknown charge
What is the launch speed of a projectile that rises vertically above the Earth to an altitude equal to five times the Earth's radius before coming to rest momentarily
If Argentinosaurus, a long-necked, gigantic sauropod, had a head height of 19 m and a heart height of 9.1 m, What was the blood pressure (in torr or mm Hg) at the feet
Two wires, each of length 1.2 m, are stretched between two fixed supports. Find the speed at which the individual waves travel on each wire
Sound is coming through an open window whose dimensions are 1.1 m x 0.75 m. How much sound energy comes through the window in one hour
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