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An elevator and its load have a combined mass of 1600 kilogram. Evaluate the tension in the supporting cable when the elevator, originally moving downward at 12.0 m/s, is brought to rest with constant acceleration in a distance of 42.0 meter.
The block is spun at 50 , then the temperature of the rod is slowly increased. When the wax melts, the block slides out to the end of the rod. Illustrate what is the final angular velocity?
A street lamp weighs 180 N. It is supported by two wires that form an angle of 150° with each other. The tensions in the wires are equal.
A chain consisting of five links, each of mass 0.120 kg, is lifted vertically with a constant acceleration of a = 4.3 m/s2. Find the magnitude of this force
At room temperature what is the strength of the electric field in a 6-gauge copper wire (diameter 4.12 mm) that is needed to cause a 1.73-A current to flow?
A 130g ball moving at 0.35 m/s in the positive x-direction is subject to a 0.15 N force in the negative y-direction for 2.5 seconds. Find the magnitude of the ball's momentum change. Find the ball's final speed.
f g.mmr2 where f is the gravitational force m and m are masses and r is a length. force has the si units kg middot
An 82.0 kg-diver stands at the edge of a light 5.00-m diving board, which is supported by two pillars 1.60 m apart, Find the force exerted by pillar A
At standard pressure, what would the temperature of water molecules be if they had a root mean square (rms) of velocity of 5.87 m/s
A flat cylindrical grinding wheel is spinning at 2000 rpm (clockwise when viewed head-on) when its power is suddenly turned off. Normally, How much work was done by friction on the system
An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat from liquid water at 0.0 degrees Celsius, How much heat |Q_H| is rejected to the room
A capacitor has a very large capacitance of 10 F. The capacitor is charged by placing a potential difference of 2V between its plates. How much energy is stored in the capacitor
A ball is dropped from rest from the top of a 6.35-m-tall building, falls straight downward, collides in-elastically with the ground, How many bounces can the ball make and still reach a windowsill that is 2.26 m above the ground
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