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Gulls are often observed dropping clams and other shellfish from a height to the rocks below, as a means of opening the shell. If a seagull drops a shell from rest at a height of 14 m, how fast is the shell moving when it hits the the rocks?
A 94-kg fullback is running at 3.7m/s to the east and is stopped in 0.85 s by a head-on tackle by a tackler running due west. Calculate the original momentum of the fullback
During a drive by golfer, the angular velocity of his club is zero at the top of the backswing and 34 rad/s at the bottom of the downswing just before impact with the ball, what is the average angular acceleration of the club
Driving in your car with a constant speed of 13 m/s, you encounter a bump in the road that has a circular cross section, as indicated in the figure. If the radius of curvature of the bump is r = 29 m, find the apparent weight of a 59-kg person in you..
The far point of a nearsighted person is 5.0 m from her eyes, and she wears contacts that enable her to see distant objects clearly. How high is the image formed by the contacts
An object of mass 2.2 kg is moving in the negative x direction at a velocity of 2 m/s. find the final velocity after the object has experienced the impulse
A standardized biological microscope has an 8.0--focal-length objective. What focal-length eyepiece should be used to achieve a total magnification of.
Two charges q1 = ?3.20 nC and q2 = +8.90 nC are at a distance of 1.20 µm from each other, What is the kinetic energy of the charge q2 when it is 0.340 µm from q1
A yo-yo has a rotational inertia of 1140 g·cm2 and a mass of 81.3 g. Its axle radius is 3.27 mm, and its string is 106 cm long, What is the magnitude of its linear acceleration, rotational kinetic energy
Compute the heat absorbed by the gas and work done by the gas during expansion.
find the net force magnitude and direction acting on a 0.5c charge due to a 3c charge 1.2 meters away at an angle of 30
A 1.50 kg mass is hung from a vertical spring with k=30.0 N/M, what is the magnitude and direction of the tensile force acting on the spring
Explain how does that compare with the heat needed to reaise the temp of the same mass of water through the same temp difference?
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