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the speed of hockey pick decreases from 45.00 to 44.67 m/s in coasting 16 m across the ice. find the coefficient of kinetic friction between the puck and the ice?
A thin film with index of refraction n = 1.29 is placed in one arm of a Michelson interferometer, perpendicular to the optical path. If this causes a shift of 8.0 bright fringes of the pattern produced by light of wavelength 693nm, what is the film t..
A small mailbag is released from a helicopter that is descending steadily at 1.00 m/s. After 3.00 s, What is the speed of the mailbag
A simple pendulum has a mass of 0.350 kg and a length of 7.00 m. It is displaced through an angle of 12.0° and then released. Solve this problem by using the simple harmonic motion model for the motion of the pendulum.
A uniform 1.80m ladder of mass 6.30kg is leaning against a vertical wall while making an angle of 53.0%u2218 with the floor. How much work did this person do against gravity
In a three pulley system a man who weighs 875.0N is standing upright holding on one end of the rope while the other end is tied to his feet. Estimate the normal force from the ground
A 282 kg log is pulled up a ramp by means of the rope that is parallel to the surface of the ramp. The ramp is inclined at 23.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.87, and the log has..
A car engine with mass = 220 kg hangs from a light chain that is linked at ring O to two other light chains as shown
An artillery shell is fired with an initial velocity of 300 m/s at 47.5° above the horizontal. To clear an avalanche, it explodes on a mountainside 47 s after firing. What is the x and y components of the shell where it explodes, relative to its f..
A laser beam is incident on two slits with a separation of 0.10 mm, and a screen is placed 4.00 m from the slits. what is the wavelength of the laser light
A small asteroid is discovered in a circular orbit around a larger asteroid at a distance of 19.39 km. The period of the orbit is measured to be 76.76 hours. What is the mass of the larger asteroid
At t = 0 the current to a dc electric motor is reversed, resulting in an angular displacement of the motor shaft given by ?(t) = (240 rad/s)t ? (21.0 rad/s2)t2 ? (1.60 rad/s3)t3. At what time is the angular velocity of the motor shaft zero
The dial on an FM radio contains numbers ranging from about 88 to about 108. What is the corresponding range of wavelengths
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