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A wire is stretched between two posts. Another wire is stretched between two posts that are four times as far apart. The tension in the wires is the same, and they have the same mass. A transverse wave travels on the shorter wire with a speed of 280 m/s. What would be the speed of the wave on the longer wire?
________ m/s
q1. at one instant a bicyclist is 40.0 m due east of a parks flagpole going due south with a speed of 10.0 ms. then
A fire hose ejects a stream of water at an angle of 31.20° above the horizontal. The water leaves the nozzle with a speed of 24.50 m/s. assume that the water behaves like a projectile, how far from a building should the fire hose be located to hit..
Consider a person on the moon who launches herself into a standing broad jump at 45 degrees. The average force generated during launching is, compute the maximum height of the jump
A body is moving with velocity of 8m/s. After 5 Seconds the velocity of the body becomes 18m/s. Find the acceleration of the body
A 44.0 kg child is in a swing that is attached to ropes 1.60 m long. The acceleration of gravity is 9.81 m/s2. Find the gravitational potential energy associated with the child relative to the child's lowest position under the following conditions.
A ball moving at 5ms collides head on elastically with a ball at rest. what are the velocities of the two balls after the collision
Standing at the edge of a cliff 33.5 m high, you drop a ball. Later, you throw a second ball downward with an initial speed of 12.7 m/s. What is the increase in speed of the second ball
A projectile is launched straight up at 59 m/s from a height of 73 m, at the edge of a sheer cliff. The projectile falls, just missing the cliff and hitting the ground below.
A beam of red light whose frequency is 4.29x10^14, passes through a piece of dense flint glass (n=1.66) in 40x10^-12 seconds, Find the thickness of the glass
a ball rolls off a platform that is 7 meters above the ground. the balls horizontal velocity as it leaves the platform
A light bulb marked "100 W [at] 120 V" is screwed into a socket at one end of a long extension cord in which each of the two conductors has a resistance of 0.776
A 23.2-mW laser beam of diameter 2.18 mm is reflected at normal incidence by a perfectly reflecting mirror. Calculate the radiation pressure on the mirror
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