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A 3.0 kg block slides along a frictionless horizontal surface with a speed of 7.0 m/s. After sliding a distance of 3.0 m, the block makes a smooth transition to a frictionless ramp inclined at an angle of 40° to the horizontal. How far up the ramp does the block slide before coming momentarily to rest?
m
A 68-kg person on skis is going down a hill sloped at 30° from the horizontal. The coefficient of friction between the skis and the snow is 0.11. What would be the magnitude of acceleration.
Two ships are moving along a line due east (see figure below). The trailing vessel has a speed relative to a land-based observation point of v1 = 59.5 km/h, What frequency is monitored by the leading ship
Intelligent beings in a distant galaxy send a signal to earth in the form of an electromagnetic wave. What is the speed vrel of the galaxy relative to the earth
Two different simple harmonic oscillators have the same natural frequency (f=7.10 Hz) when they are on the surface of the Earth. Calculate the new frequency of the pendulum
A circular wire loop whose radius is 19.0 cm carries current of 2.30 A. It is placed so that the normal to its plane makes an angle of 29.0° with a uniform magnetic field of 11.0 T. Calculate the magnetic dipole moment of the loop.
A single loop of copper wire moves at an unknown constant speed v into a region of uniform magnetic field B = 5.00 T. Calculate the induced current in the copper wire loop
Unpolarized light with an intensity of 650 W / m2 is incident on a polarizer with an unknown axis. What is the angle between the axes of the polarizers
A 78-kg man standing on a scale in an elevator notes that as elevator rises, the scale reads 834 N. What is the acceleration of the elevator.
A recent discovery of human bones revealed only 26.5 % radiocarbon activity compared to live human bones. Estimate the age of the bones
A 2.5 kg stone is dropped from a height of 4m. What is its momentum on impact
A wave crest passes an observation point followed by a second crest. The time between crest is a period of 168.818 seconds. If the wave is traveling at a speed of 154.167 m/s, how long are the wavelengths?
A 5.1 kg bucket of water is raised from a well by a rope. find the force exerted by the rope on the bucket.
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