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A 75 kilogram man is riding in a 610 kilogram elevator. The person is standing on a scale reading 4 kilogram more than the real mass of the man. Find what is the tension in the cable of the elevator?
A 4.15 g lead bullet traveling at 316 m/s is stopped by a large tree. what is the increase in temperature of the bullet
A cart of mass 250 g is placed on africtionless horizontal air track. evaluate the period at which it oscillates
a bobsled slides down an ice track starting at zero initial speed from the top of an 44.9 m high hill. the acceleration
A diver shines a light up to the surface of a flat glass-bottomed boat at an angle of 33? relative to the normal. If the indices of refraction of air, water, and glass are 1.0, 1.33, and 1.6 respectively, at what angle does the light leave the glass ..
A rocket fires two engines simultaneously. One produces a thrust of 725 N directly forward while the other gives a thrust of 513 N at an angle 32.4^\circ above the forward direction. Find the magnitude of the resultant force
a guitar string has a tension t length l and diameter d. give the multiplicative factor by which the fundamental
a uniform charge of 15.5 microc is on a thin circular ring lying in an xy plane and centered on the origin. the rings
An ac series circuit has an impedance of 101 Ω , and the phase angle between the current and the voltage of the generator isφ = -23 °. The circuit contains a resistor andeither a capacitor or an inductor.
The rear window of a van is coated with a layer of ice at 0°C. The density of ice is 917 kg/m3, What is the maximum thickness of ice above this area that the defroster can melt in 4.4 minutes
A film of MgF2 (n = 1.38) having thickness 1.68 10-5 cm is used to coat a camera lens. What are the three longest wavelengths that are intensified in the reflected light
An 80.0-kg man jumps from a height of 2.50 m onto a platform mounted on springs, What is the man's speed at the instant he depresses the platform 0.120 m
You want to double the resonance angular frequency of a series R-L-C circuit by changing only the pertinent circuit elements all by the same factor
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