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A cubic meter of some material has a mass of 8000 kg. The block of material is lowered into a lake by a strong cable until the block is completely submerged. Draw a free-body diagram for the block. (Do this on paper. Your instructor may ask you to turn in your work.)
Find the buoyant force on the block and the tension in the cable.
A 4.4kg ball with a velocity of 5.0m/s in the+x-direction collides head-on elastically with a stationary 2.5kg ball. What is the speed of the second ball after the collision
Two small objects are hung, from a point, on strings 50 cm long. they each have mass .06 grams and are given equal charge, What is the magnitude of the charge on each object
A man of mass 45 kg. is standing on a uniform rolling board of length 10 m. and mass (mb = 30 kg). how far does the board retreat
the acceleration of gravity at the surface of moon is 1.6 m/s^2. A 5.0 kg stone thrown upward on moon reaches a height of 20m, find its intial velocity
An air-core solenoid has a length of 27.1 cm, a cross-sectional area of 0.0454m2, By how much does the magnetic flux through the solenoid change
The index of refraction for violet light in silica flint glass is 1.65, and that for red light is 1.62. What is the angle of deviation for the red ray passing through a prism of apex angle
The collision is not head-on. After the collision, the two pucks fly apart with the angles shown in the drawing. Find out the final speed of puck A also Find out the final speed of puck B. m/s
Calculate the rotational inertia of a meter stick, with mass 0.576 kg, about an axis perpendicular to the stick and located at the 29.9 cm mark
A semicircle of radius a is in the first and second quadrants, What is the direction of the net electric field at the origin produced by this distribution of charge (+x,-x,+y,-y direction)
You have a wire of length L = 2.1 m for making a square coil of a dc motor, Find the maximum torque exerted on the coil when the wire is used to make a single-turn square coil
A 35 N hand and forearm are held at a 45 degree angle to the vertically oriented humerus. how much force must be exerted by the forearm flexors to maintain this position
A 20 liter tank of helium is at a pressure of 190 kPa at a temperature of 0 C. What is the speed of the helium atoms in the tank at this new volume
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