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A small ball is attached to one end of a spring that has an unstrained length of 0.188 m. The spring is held with the other end, and the ball is whirled around in a horizontal circle at a speed of 2.91m/s. The spring remains nearly parallel to the ground through the motion and is observed to stretch by 0.012 m. By how much would the spring stretch if it were attached to the ceiling and the ball allowed to hang straight down, motionless?
an artillery shell is fired with an initial velocity of 300 ms at 55.0deg above the horizontal. to clear an avalanche
An engineer claims to be able to compress 0.100 kg of water vapor at 200. degrees C and 0.100 MPa in a piston-cylinder arrangement in an isothermal and adiabatic process. determine final temperature and pressure
A slide projector desires to create a 98 centimeter high image of a 2 centimeter tall slide. Find how far should you place the lens from the slide
A 13.5 kg raccoon falls out of a tree and hits the ground with a kinetic energy of 1237.0 J. What was the raccoon's velocity when it was 5.0 m above the ground
A certain wire stretches 0.980 cm when an outward force of magnitude F is applied to each end. The similar force is applied to a wire of the same material however with tree times the diameter and with three times the length. By how much will the seco..
A .500kg football is thrown toward the eastwith a speed of 15m/s. A stationary reciever catches the ball andbings it to rest in .020s. What is the average force exerted on the reciever
A 55.1-kg ice skater is moving at 4.00 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole. Determine the force exerted by the horizontal rope on her arms
According to recent test data, an automobile travels 0.250 mi in 19.9 s, starting from rest. The same car, when braking from 60.0 mi/h on dry pavement, stops in 146 ft. Find the acceleration of this car when it is speeding up
an electromagnetic wave strikes a 1.91-cm2 section of wall perpendicularly. the rms value of the waves magnetic field
A nonreflective coating (n = 1.40) covers the glass (n = 1.52) of a camera lens. Assuming that the coating prevents reflection of a specific wavelength (vacuum = 535 nm), find the minimum nonzero thickness that the coating can have.
A high-speed lifting mechanism supports a 875 kg object with a steel cable 23.0 m long and 4.00 cm2 incross-sectional area. Determine the elongation of the cable
To what angle beta can the sculpture be tipped.
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