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As a tennis ball is struck, it departs from the racket horizontally with a speed of 27.3 m/s. The ball hits the court at a horizontal distance of 19.3 m from the racket. How far above the court is the tennis ball when it leaves the racket?
Messages reach at random to be sent across a communications link with a information rate of 9600 bps. The link is 70 percent utilized, and the average message length is 1000 octets.
A uniform disk of radius 0.46 m is mounted on a frictionless, horizontal axis. A light cord wrapped around the disk supports a 0.58 kg object. When free from rest the object falls with a downward acceleration of 4.1 m/s squared.
Imagine that plane reaches the necessary takeoff velocity
Discuss the cause and different mechanisms available. Recognize and discuss the flow control techniques on which they are based? Determine the pros and cons of each?
Current & magnetic induction in the electrical circuits.
A caterpillar climbs up a one-meter wall. For every 3 cm it climbs up, it slides down 1 cm. It takes 10 minutes for the caterpillar to climb to the top. Compute the speed at which the caterpillar travels.
A cue ball hits a stationary eight ball on a pool table. For which of the following systems is there a change in momentum during the collision? define why.
If the perceived frequency becomes constant at 440 Hz, what is terminal speed at the paratrooper? Take the speed sound in air to be 343 m/s and assume the paratrooper always remains below the helicopter.
A brass plate measures 30 cm by 40 cm. The coefficient of linear thermal expansion is 19.0 10-6/°C. If the temperature of the plate is increased by 10.0 K, next what is the increase in the area of the plate? a) 0.350 cm2 b) 0.404 cm2 c) 0.456 cm2 ..
Estimate mean and maximum velocities for a liquid
A 1070-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960-N crate hangs from the far end of the beam.
What was the absorbed dose in the carbon walls? The average mass stopping powers of graphite and CO2 for the photons are, respectively, 1.648 and 1.680 MeV cm^2/g.
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