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A tire placed on a balancing machine in a service station startsfrom rest and turns through 5.5 revs in1.2 s before reaching its final angularspeed. Assuming that the angular acceleration of the wheel isconstant, calculate the wheel's angular acceleration.
(rad/s2)
The range of human hearing is roughly from twenty hertz to twenty kilohertz. what are the lengths of the longest and shortest pipes
On the Apollo 14 mission to the moon, astronaut Alan Shepard hit agojf ball with a 26 iron. For how much more time was the ball in flight
What is the kinetic energy of a 0.5-kg object moving at a constant speed of 2 m/s?
A solid steel cylinder is standing (on one of its ends) vertically on the floor. The length of the cylinder is 3.5 m and its radius is 64 cm. What is the weight of the object
a ships anchor chain is wrapped around a hollow steel drum of mass m 500 kg and radius r 0.5m. the drum is located on
An astronomical telescope uses an objective power of +1.280 D. If the length of the telescope is 80.000 cm, what are power of the eyepiece
A highway curve with a radius of 650 m is banked properly for a car traveling 120 km/h. how much sideways force must the tires exert against the road if the car does not ski
A village maintains a large tank with an open top, containing water for emergencies. Calculate the friction force exerted by the nozzle on the stopper
A transformer for an answering machine takes an acvoltage of amplitude 150 V as its inputand supplies a 7.9 V amplitude to the answering machine. The primary has 400turns.
A bullet weighting 10g is fired with a velocity of 088 m/s. After passing through a mud will 1m thick, its velocity decreases 10 100 m/s. Find the average resistance offered by the mud wall.
Fill a glass with water. Look down through the water, and then through the glass to your hand on the outside. Can you see it? Tip the glass towards you and watch your hand disappear. Why? Do you know what physical phenomena this observation is rel..
City A is 150. miles from City B. City C is 300. miles from City B. A pilot flew a plane directly from City A to City B. While making the trip, the plane’s compass indicated a heading of 130.° and its air speed indicator indicated a speed of 60.0 ..
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