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Determine at what angle should the roadway on a curve with a radius 50 meter be banked to allow cars to negotiate the curve at 12 m/s even if the road is icy and frictional force is zero?
A walkway suspended across a hotel lobby is supported at numerous points along its edges by a vertical cable above each point and a vertical column underneath. how much does the point move down in meters
Three blocks are in contact and sitting on frictionless table. What is the magnitude of the force exerted by the third block on the second block
A 2000 Hz sound wave passes through a wall with two narrow openings 30 cm apart. If sound travels on average 345 m/s, What is the angle of the first order maximum
A boy flies a kite with the string at a 30 degree angle to the horizontal. The tension in the string is 4.5N. How much work does the string do on the boy
In a shuffleboard game, the puck slides a total of 12 m before coming to rest. what was the initial speed of the puck
Assume a spacecraft of mass 28,000 kg is accelerated to 0.43c. How much kinetic energy would it have? If you utilized the classical formula for kinetic energy, by what percentage would you be in error?
two stationary positive point charges charge 1 of magnitude 3.25nc and charge 2 of magnitude 1.60nc are separated by a
A blender is switched to a lower speed and the angular velocity of its blade decreases uniformly from 52 rad/s to 12 rad/s. Through what angle does the blade turn during this time
A length of wire has a total resistance of 120 ?. If cut up into N identical pieces, How many pieces did the original wire get cut up into
A satellite in Earth's orbit is accelerating towards the Earth. Explain why, on average, the satellite is not getting closer to the Earth.
he potential difference between two parallel conducting plates in vacuum is 410 V. What is the kinetic energy of the alpha particle
A 5.95kg object is thrown 18.10m/s at a 30.00° angle andcollides head-on at its peak with a 14.5kg object fired at28.0° which is also at its peak. At what velocity was the14.5kg object fired
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