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Reducing friction with ball bearings
Find two tin cans that have a deep groove approximately the top, such as paint cans. Lay marbles in single groove and invert the other can over the marbles to form a ball bearing. Place a book on top and note how simply the demonstration bearing turns. Oil the marbles and it will turn still more easily.
Ask An elevator cable can withstand a maximum tension of 19,500N before breaking. The elevator has a mass of 490 kg and a maximum acceleration of 2.24 m/s2 . Engineering safety sta
Oxygen effect: The oxygen effect may play a role in the recurrence of cancer .The cell near the center of a large tumor have a poor blood supply and thus a poor oxygen supply
Please help I am stuck on this physics problem. Please cany anyone explain to me how to do it step by step please? If the speed of a car is increased by 135%, by what factor will
Maximum Range Suppose a cannonball launched from a cannon at 3 various launch angles - 30-degrees, 45-degrees, and 60-degrees. The launch speed is held constant; just the angle
Illustrate the first law of thermodynamics for a closed system undergoing cyclic process.
The wheatstone bridge: You have already solved resistor networks using Ohm's law and Kirchoff's laws. In this unit we are going to look at a special arrangement of series and
A light horizontal bar has a length of 3m. If a 102-kg mass is placed 80 cm away from the left end of the bar and a 109-kg mass is placed 2.15 m from the left end, where must it be
NEWTON'S SECOND LAW OF MOTION: This law states that "A force applied on body produce acceleration in its own direction. The acceleration differs directly with the applied force
Diffrence between isobaric process and isochoric process A process in which the pressure is kept constant is known as isobaric process. (i.e. ΔP=0) A process in which
A sled slides down a frictionless track and loops the loop without falling off. What is the minimum value of h in terms of r ? The only other information given is that the an
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