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Q. Water flows straight down from an open faucet. The effects of air resistance and viscosity can be ignored. What is the algebraic expression for the speed v1 of the water at the lower point? Express your answer in terms of the speed v2 of the water as it leaves the faucet, the magnitude g of the acceleration due to gravity, and the distance h of the water between the faucet and the lower point.
Q. A horizontal uniform bar of mass 2.9 kg and length 3.0 m is hung horizontally on two vertical strings. String 1 is attached to the end of the bar, and string 2 is attached a distance 0.74 m from the other end. A monkey of mass 1.45 kg walks from one end of the bar to the other. Find the tension T_1 in string 1 at the moment that the monkey is halfway between the ends of the bar.
A horizontal desk surface measures 2.08 m x 1.73 m. If Earth's magnetic field has magnitude 0.495 mT and is directed 64.8° below horizontal, what is the magnetic flux through the desk surface.
The speed of light in a transparent medium (such as glass) is less than the speed of light in a vacuum. Is this a violation of the theory of relativity.
The primary coil of a transformer has 237 turns; secondary coil has 2100 turns. An alternating current is sent through the primary coil. The emf in the primary is 25 V. What is the emf amplitude in secondary.
A potter's wheel having a radius 0.55m and a moment of inertia 12.5 kg·m2 is rotating freely at 55rev/min. The potter can stop the wheel in 6s by pressing a wet rag against the rim and exerting a radially inward force of 68 N.
A small metal bead, labelled A, has a charge of 29 nC. It is touched to metal bead B, initially neutral, so that the two beads share the 29 nC charge, but not of necessity evenly. When the two beads are then placed 5.0 {rm cm} apart, the force betwee..
What is resultant force
The bullet becomes embedded in the block. If the bullet-block system compresses the spring by a maximum of 88.0 cm, what was the speed of bullet at impact with the block.
What would be the equilibrium temperature when a 271 g block of copper at 280°C is placed in a 169 g aluminum calorimeter cup containing 817 g of water at 11.5°C.
If the football has the mass of .420 kg and the time of contact with the ball is .014 s, what is the force exerted by the ball on a kicker's foot.
A 36.0 g bullet moving at 478 m/s strikes a 3.7 kg bag of flour that is on ice, at rest. The bullet passes during the bag, leaving at 255 m/s. How fast is the bag moving when the bullet exits.
How to discuss the results in relation to the objectives of the experiment of CENTRIPETAL FORCE? Next, how am i supposed to elaborate the results that I obtained if my results are confirmed the centripetal force theory.
A car accelerates from rest to a kinetic energy of 1.65 x 10^5 Joules in a distance of 646 m. How much force did the car's engine deliver to produce the change in kinetic energy.
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