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A pendulum of length 7.87 m is released from rest at an angle of 22.4 º from the vertical. What is the maximum speed of the pendulum? Please use conservation of energy to solve this problem.
A water pipe having a 2.96 cm inside diameter carries water into the basement of a house at a speed of 0.804 m/s, find water pressure and speed at the second floor
At a distance of 1.41 m from a point charge of +2.74 ?C, how many of the additional equipotential surfaces are crossed by the time the electric field has shrunk to one-half of its initial value
When Josh begins his discus throwing motion, he spins with an angular velocity of 5 rad/s. Just before he releases the discus, what is Josh's average angular acceleration
Two cars a and b are travelling in the equal direction with velocities A and B(A>B). While the car a is at a distance behind car b, the drive of car a applies break producing uniform retardation r, there will b no collision while.
An ideal monatomic gas is the working substance of a Carnot engine. During the isothermal expansion the volume doubles. Compute the temperature of the reservoirs between which the engine operates
A stream turbine at an electric power plant delivers 4 500 kW of power to an electrical generator which converts 95% of this mechanical energy into electrical energy
Calculate the speed of a proton after it accelerates from rest through a potential difference of 160.
Assume that the sun runs out of nuclear fuel & suddently collapses to form a white dwarf star, with a diameter equal to that of the Earth. Estimate the new rotation period of the Sun.
A simple pendulum uses a steel wire as the "string." The length of this wire is 1.5 m at room temperature. What is the change in the period of the pendulum
The middle-A organ pipe was designed to sound at exactly 440 Hz when the temperature is 20 C. How long is the organ pipe if it is open on both ends
define the initial velocity of the ball.
two crates, of mass m1 = 71kg and m2 = 133kg , are in contact and at rest on a horizontal surface. Force F = 610N is exerted on the 71-kg crate. Determine the acceleration of the system
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