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Q. How much force is required to hold a 7.20 cm diameter hose delivering 470 L/min by a 0.73rm cm diameter nozzle?
Q. A 2.5 kg cart travels at around a 3m radius circle. it makes 5 revolutions in 40 seconds. Determine its speed and centripetal force required to move around the circle?
Find the probability that the electron will tunnel through the barrier.
A 1.5 {rm kg} block rests on top of a 7.5 {rm kg} block. The cord and pulley have negligible mass, and there is no significant friction anywhere. What force F should be applied to bottom block so the top block accelerates to the right at 2.60 m/s^..
The reflecting surfaces of two intersecting flat mirrors are at the angle of 59. A light ray strikes the horizontal mirror, reflects off horizontal mirror, impinges on the raised mirror, reflects off the raised mirror and proceeds in the right-han..
What is an amplitude at a point where two pulses are crossing if the end at which reflection occurs is free to slide up and down.
How far below the top of the well is the surface of the water. If you ignored the travel time for the sound, what would have been the calculated depth.
Two lightweight rods 24 {rm cm} in length are mounted perpendicular to an axle and at 180 ^circ to each other. At the end of each rod is a 480 {rm g} mass. The rods are spaced 42 {rm cm} apart along an axle. The axle rotates at 4.90 rad/s.
About the axis of the rod.ωA ball of mass m is attached by two strings to a vertical rod. The entire system rotates at constant angular velocity.
An archer shoots an arrow horizontally at the target 14 m away. The arrow is aimed directly at the center of target, but it hits 59 cm lower.
The infamous chicken is dashing toward home plate with a speed of 5.80 while he decides to hit the dirt. The chicken slides for 1.1, just reaching the plate as he stops (safe, of course).
Find out the angular velocity
The rock strikes the ground a horizontal distance of 44 m from the base of the building. Assume that the ground is level and that the side of the building is vertical. How long did the rock take to hit the ground? Give your answer in seconds to two d..
Four charges are placed at the vertices of a square, centered at the origin. If each side of the square has a length of 0.224 m, what is the strength and direction of net electric field at the origin? Express your answer in terms of the charge ma..
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