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When a pitcher throws a curve ball, the ball is given a fairly rapid spin. If a 0.15-kg baseball with a radius of 3.7cm is thrown with a linear speed of 48 m/s and an angular speed of 42 rad/s, how much of its kinetic energy is translational and how much is rotational? Assume the ball is a uniform, solid sphere.
The tip of a scanning electron microscope has a radius ofcurvature of 5 nm, and is at a potential of 3V. estimate the electric field at its surface
A 1400 kg car enters a passing zone and accelerates from70km/h to 95 km/h to pass a slower car. How much work must be done on the car
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 U.S. penny has a diameter of 1.9000cm at 20.0 C. The coin is made of a metal alloy (mostly zinc) for which the coefficient of linear expansion is 2.6x10^-5 K^-1. What would its diameter be on a hot day in Death Valley
A tuning fork vibrating at 516 Hz falls from rest and accelerates at 9.80 m/s2. How far below the point of release is the tuning fork while waves with a frequency of 489 Hz reach the release point? Take the speed of sound in air to be 340 m/s.
If the field is directed perpendicular to the plane of the loop and the magnetic flux through the loop is 7.60 10-3 T · m2, what is the strength of the magnetic field
On sept 8 2004 the genesis spacecraft crashed because the parachutedid not open. The 210kg capsule hit the ground at 311km/h and penitrated the ground to a depth of 81cm. what force did the ground exert on the capsule
An entertainer, when performing a bubble trick, forms one bubble inside another. The surface tension of the bubble liquid is ?=0.04 N m-1. What is the gauge pressure in the inner bubble
What is acceleration due to gravity
Light Bulbs in Series and in Parallel. Two light bulbs have resistances of 500 ? and 1000 ?. The two light bulbs are connected in series across a 110 V line. (a) Find the current through the 500 ? bulb. A Find the current through the 1000 ? bulb. ..
A telephone cord is 9.00 m long andhas a mass of 0.500 kg. A transversewave pulse is produced by plucking one end of the taut cord. What is the tension in the cord
1. the sun radiates energy at a rate of 2.86x1023 kw. each fusion reaction in the core of the sun produces 26.73 mev of
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