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Q. To understand the concept of tension and the relationship between tension and force.
This problem introduces the concept of tension. The instance is a rope, oriented vertically, that is being pulled from both ends. Let and (with u for up and d for down) represent the magnitude of the forces acting on the top and bottom of the rope, respectively. Assume that the rope is massless, so that its weight is negligible compared with the tension. (This is not a ridiculous approximation--modern rope materials for example Kevlar can carry tensions thousands of times greater than the weight of tens of meters of such rope.)Consider the three sections of rope labeled a, b, and c.
At point 1, a downward force of magnitude acts on section a.At point 1, an upward force of magnitude acts on section b.At point 1, the tension in the rope is.At point 2, a downward force of magnitude acts on section b.At point 2, an upward force of magnitude acts on section c.At point 2, the tension in the rope is.
As a freely falling object picks up downward speed, what happens to the power supplied by the gravitational force? Does it increase, decrease, or stay the same and Why.
The amplitude of the voltage across an inductor can be greater than the amplitude of the generator emf in an RLC circuit. Consider an RLC circuit with Epeak = 50 V, R = 14, L = 1.05 H, and C = 1.12 µ F. Find out the amplitude of the voltage across th..
Coherent light with wavelength 599nm passes through two very narrow slits, and the interference pattern is observed on a screen a distance of 3.00m from the slits. The first-order bright fringe is a distance of 4.84mm from the center of central brigh..
A reflecting, spherical Christmas tree ornament has a diameter of 20 cm. A child looks at the ornament from a distance of 40 cm. define the image she sees. Where is the image locate.
Discover the least value of initial velocity
what is the final position of the man. What is the magnitude of the electric field (in N/C) at the point (-2.0 m, 3.0 m).
A ball is thrown nearly vertically upward from a point near the edge of a tall building. it misses the edge of the building in ts way down and passes a point 160ft below its starting point 5 seconds after it leaves the thrower's hand.
Two people are carrying a uniform wooden board that is 3.00 m long and weighs 160 N. If one person applies an upward force equivalent to 60 N at one end, at what point does the other person lift . If the tangential acceleration of a yo-yo at the en..
define the magnitude of the torque on the dipole.
Two stationary positive point charges, charge 1 of magnitude 3.45 nC and charge 2 of magnitude 1.50 nC, are separated by a distance of 52 cm. An electron is released from rest at the point midway between the two charges, and it moves along the lin..
An electric wire that has a mass of 5 kg for a 20m length is strung between two poles 20 m apart. What must be the tension in the wire if it is to take .80 seconds for a pulse to travel along the wire from one pole to the other.
A 2.20 sound wave travels through a pregnant woman's abdomen and is reflected from the fetal heart wall of her unborn baby. The heart wall is moving toward sound receiver as heart beats. The reflected sound is after that mixed with the transmitted so..
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