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A large man is sitting on a four legged chair with his feet on the floor. The combined mass of the man and the chair is 95.0 kilogram. If the chair legs are circular and the radius is 0.600 at the bottom, determine what pressure each leg exerts at the bottom?
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A small immersion heater is rated at 300 Watts. Estimate how long it will take to heat a cup of soup (assume this is 290g of water)from 22oC to 54oC
An air-filled parallel-plate capacitor has plates of area 2.90 cm2 separated by 2.50 mm. The capacitor is connected to a 6.0-V battery. find the magnitude of the uniform electric field between the plates
A sample of ideal gas occupies a volume of one litre at atmospheric pressure and temperature, 20 C. What pressure is required to squeeze the gas into one-half litre at 40 C?
A major-league pitcher can throw a baseball in excess of 44.6 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches catcher who is 18m away from the point of release.
A series RCL circuit operating at 60Hz contains a 35Ωresistor and a 8.2μF capacitor. If the power factor ofthe curcuit is +1.00 what is the inductance of the inductor in this circuit
A block of mass m = 2.60 kg is pushed a distance d = 2.90 m along a frictionless horizontal table by a constant applied force of magnitude F = 16.0 N directed at an angle ? = 29.0° below the horizontal
ce-144 is a fission product formed in fission. the cumulative fission yield is 5.5. since all the precursors of ce-144
q1. a 77 kg man drops from rest on a diving board -3.1m above the surface of the water and comes to rest .41s after
the current flowing in a solenoid that is 21.1 cm long and has a radius of 2.20 cm and 528 turns decreases from 3.03 a
An advertisement claims that a centrifuge takes up only 0.127m of bench space but can produce a radial acceleration of 3000g at 5000 rev/min. Calculate the required radius of the centrifuge
What average force is necessary to bring a 49.9-kg sled from rest to a speed of 3.1 m/s in a period of 19.9s? Assume frictionless ice. ___ N in the direction of the sled's motion
Two packages at UPS start sliding down the 20 degree ramp, How long does it take package A to reach the bottom
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