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Two masses m1 and m2 are connected via a massless, unstrecthable string over a massless pulley. Mass m2=72N rests on the surface of an incline making θ=34 degrees. What must be the mininmum value of m1 that will make m2 begin to move? Assume Ms= 0.75 and Mk=0.25
A lab team rides a ski lift to the top of the mountain, due to some congestion their ears fail to pop, that is the pressure inside the ear does not equalize with the outside atmosphere. Calculate the force on the eardrum
A solid sphere and a solid disk of the same mass and radius are rolling wihtout slipping at the same speed. What is the ratio of their angular momentum
A rock of mass m = 2 kg is tied to a string of length L = 1.9 m and is twirled in a vertical circle. The speed v of the rock is constant; that is, it is the same at the top and the bottom of circle.
What is the largest index of refraction that the liquid can have, such that none of the light is transmitted into the liquid and all of it is reflected back into the solid
When you look at a clock on a space ship zooming by you at a fair fraction of the speed of light, What does the driver of the space ship see
A 54-kg skater initially at rest throws a 3.0-kg medicine ball horizontally to the left. Determine the acceleration of the ball during the throw
A school bus takes 0.89 h to reach the school from your house. If an average velocity of the bus is 21.1 km/h to the east, what is the displacement.
A uniform meter stick is in static rotational equilibrium when a mass of 220g is suspended from the 5.0-cm mark, What is the mass of the meter stick
the depth of the ocean is sometimes measured in fathoms 1 fathom 6 feet. distance on the surface of the ocean is
A 10 kg block of ice slides along a frictionless surface that is inclined at a 60 degree angle with the horizontal. What is the weight of the block
A solenoid is made of 302 turns of wire, wrapped around a hollow cylinder of radius 1.25 cm, What is the self-inductance of the solenoid
In 1994, Susan Williams of California blew a bubble-gum bubble with a diameter of 58.4 cm. what would the tangential speed of those points be
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