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A thin rod (length = 1.37 m) is oriented vertically, with itsbottom end attached to the floor by means of a frictionless hinge.The mass of the rod may be ignored, compared to the mass of theobject fixed to the top of the rod. The rod, starting from rest,tips over and rotates downward. (a) What is the angular speed of the rod just before it strikes the floor? (Hint: Consider using the principle of conservation ofmechanical energy.)(b) What is the magnitudeof the angular acceleration of the rod just before it strikes thefloor?
A tetrahedron contains a point charge Q = 65 nC. Find the electric flux through the surface of the tetrahedrom. Find the flux through each face of the tetrahedron
monochromatic light falls on two very narrow slits 0.050 mm apart. successive fringes on a screen 5.10 m away are 5.2
A tightrope walker who weighs 640 N walks along a steel cable. When he is halfway across, the cable makes an angle of 0.040 rad below the horizontal. What is the cross-sectional area of the cable
a diver springs upward with an initial speed of 1.9 ms from a 2.5 m board.a find the velocity with which he strikes the
A 17000 N automobile travels at a speed of 47 km/h northward along a street, What will the direction of the velocity of the cars be immediately after the collision
The tire on a bicycle is filled with air to a gauge pressure of 691 kPa at 20?C. What is the gauge pressure in the tire after a ride on a hot day when the tire air temperature is 48?C?
A baseball is hit at Fenway Park in Boston at a point 0.626 m above home plate with an initial velocity of 31.00 m/s directed 50.0° above the horizontal. find the vertical distance by which the ball clears the wall
An airplane flying directly eastward at a constant rate travels 305 km in 2.0 h. What is the average velocity of the plane
When the skateboarder reaches the highest point, how far is this point horizontally from the end of ramp.
question1a 95 m long train begins uniform acceleration from rest. the front of the train has a speed of 25ms when it
A 4.00 kg hoop starts from rest as shown in the diagram below. If the radius of the hoop is 0.500 m, the height, h, is four times the radius of the hoop, and l is equal to the radius of the hoop, what is the linear speed (in meters/second) of t..
a thermodynamics cycle similar to carnots is constructed with four reversible steps1. reversible isothermal expansion
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