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A ball is connected to a 4 cm long string. Suppose you hold the free end of the string and make the ball spin on a table so that the trajectory lies in a horizontal plane. Suppose that the tangential speed of the ball is constant and its value is 16 cm/s. Compute the angular velocity of the ball. What is the period T of the rotation? Express the angular velocity in revolutions per minute. Suppose now that the ball with angular acceleration α = -1.04 rad/s2. How much space will it travel along the circle after it stops? In how much time will it stop? How many complete revolutions will the ball make before coming to a stop?
A golf ball rolls off a horizontal cliff with an initial speed of 13.0 m/s. How much time does the ball spend in the air
A fiber optic line is composed of a core with an index of refraction of 1.47 and cladding with an index of 1.31. Which one of the following relations best describes angles of incidence ? that will result in total internal reflection within the fib..
Traffic is moving along the highway at 51 km/h on a rainy day. Illustrate what is the minimum coefficient of friction between tires and road that will allow cars to negotiate the turn without sliding off the road?
A flywheel has a constant angular deceleration of -2.36 rad/s2. Find the time required for the flywheel to come to rest
Horizontally polarized light passes through two ideal linear polarizers with transmission directions making angles of ? and - ? with the horizontal direction. Find polarization state of the emergent light
consider an lc circuit with l.340 henrys and c.0180 farads. the capacitor is initially charged to q 76.0 millicoulombs.
the primary windings of a transformer which has an 80 efficiency are connected to110 v ac. the secondary windings are
a sample of blood is placed in a centrifuge of radius 12.0 cm. the mass of a red blood cell is 3.0 x 10-16 kg and the
At the edge of a 12- m-tall building, two children throw rocks at 12 m/ s, one upward and one downward. Find the time until the rock
In a computer memory chip, each bit of information (a 0 or a 1) is stored in a single tiny circuit etched onto the surface of a silicon chip. Estimate the area of each circuit
A simple machine is pushing a giant 10,000kg speaker upwards next to a concert stage. The speaker is moving at a constant 0.5m/s. What power is the lift using?
Suppose a rocket launches with an acceleration of 33.0m/s2. What is the apparent weight of a 95-kg astronaut aboard this rocket
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