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Q. A stunt man whose mass is 70 kg swings from the end of a 3.7-m long rope along arc of a vertical circle. Presume he starts from rest when the rope is horizontal.
Find the tensions in the rope that are required to make him follow his circular path, at a height of 1.50 m above the bottom of circular arc.
Find out the tensions in the rope that are necessary to make him follow his circular path, at the bottom of his arc.
A student pulls a box of books on a smooth horizontal floor with a force of 100 N in a direction of 37 degrees above the horizontal. If the mass of the box and the books is 40 kg, what is the normal force on box? a. 332 N b. 312 N c. 392 N d. 292 N
What is the magnitude of the vertical component of its velocity as it strikes the ground.
This magnetic field accelerates the electron in a circular motion. What is radius of the circle. The final situation is observed to be all water at 18°C. What was the mass of the ice cube.
Classically, the electron cannot pass through the barrier because E
What is the length of the greatest and thinnest string that can be located under a tension of 860 without breaking .
A glass window pane is exactly 20 cm by 36 cm at 10oC. By how much has its area increased as it temperature is 33oC, assuming that it can expand freely? Take the coefficient of thermal expansion for the glass to be exactly 9 x 10-6/Co.
The total mechanical energy of the spacecraft, assume that the gravitational potential energy is zero at an infinite distance from the Earth.
A vertical tube open at the top contains 5.2 cm of oil (density 0.82 g/cm^3) floating on 5.2 cm of water. Find out the gauge pressure at the bottom of the tube.
A baseball player runs 27.4meters from batter's box to first base,overruns first base by 3.0 meters,and then returns to first base. Compared to the total distance traveled by the player,magnitude of the players total displacement from the batters ..
Two sound speakers separated by a distance of 3-meters, are driven in phase by same audio amplifier. A listener sits directly in front of one speaker at a distance of 4 meters from it so that listener and speakers form a right triangle.
What is the frequency of up and down oscillations of the wheel? Regard wheel as a mass on one end of a spring and regard the body of the car as a fixed support for the other end of the spring.
Calculate the size of the average force. plan the force vectors with their tails at the left sphere
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