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A 9.0 kg hanging weight is connected by a string over a pulley to a 5.0 kg block sliding on a flat table. If the coefficient of sliding friction is 0.20, find the tension in the string.
a. 19 Nb. 24 Nc. 32 Nd. 38 N
Just after each jumps, that person is moving away from the crate with a speed of 4.40 m/s relative to the crate.
The index of refraction for red light in water is 1.331 and that for blue light is 1.340. what are the underwater angles of refraction for the blue and red components of the light
A 57 kg tightrope walker stands in the middle of a rope. Her weight makes the rope sag, evaluate the rope tension
A rod of 2.0-m length and a square (2.0 mm x 2.0 mm) cross section is made of a material with a resistivity of 6.0 x 10 ^-8 ohms m. What is heat generated in the rod
Two loudspeakers are placed above and below each other and driven by the same source at a frequency of 4.50x10^2 Hz. An observer is in front of the speakers (to the right) at point O.
Find the frictional torque, which is assumed to be constant. Find the moment of inertia of the wheel.
a 65 rm kg student is standing atop a spring in an elevator that is accelerating upward at 3.0rm mrm s2. the spring
A planet orbits the sun with a period of 8 years. How far is the planet from the sun
a silver coin lies on the bottom of a clear lake 5.5 m deep. the coin is 4 cm in diameter. the index of refraction of
A 255 kg piano slides 4.2 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline (Fig. 6-36). The effective coefficient of kinetic friction is 0.40 Figure 6-36
An Earth satellite moves in a circular orbit 660 km above the Earth's surface. The period of the motion is 97.7 min. What is the speed of the satellite? What is the magnitude of the centripetal acceleration of the satellite?
a police car is traveling at a velocity of 16.0 ms due north when a car zooms by at a constant velocity of 45.0 ms due
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