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Q. An undamped oscillator has period 0 = 1.000 seconds, but I now add a little damping so that its period changes to 1 = 1.001 seconds. What is the damping factor ? By what factor will the amplitude of oscillation decrease after 10 cycles?
Q. A mass of 10 kg has 3 forces exerted against it, as shown in the diagram below. Given the information below, calculate the magnitude and orientation of the resultant force.
F1 has a magnitude of 10.5 N, with θ = 15° to the horizontal
F2 has a magnitude of 55.0 N, with θ = 33° to the vertical
F3 has a magnitude of 23.9 N, with θ = 45° to the horizontal
An 845-N sled is pulled a distance of 173 m. The task requires 1.20 x 10^4 J of work and is done by pulling on a rope with the force of 142 N. At what angle is the rope held.
A 175 watt motor is used to lift a 129 kg container to a height of 7m. How much time does it take to lift container with the motor.
The altitude of a hang glider is increasing at a rate of 6.80 m/s. At the same time, the shadow of the glider moves along the ground at a speed of 15.5 m/s when the sun is directly overhead. Calculate the magnitude of the glider’s velocity.
What is momentum of the system immediately after the pack is thrown?
If air resistance & other effects are ignored how far away did the shell hit.
A converging lens has a focal length of f = 29 cm. If an object is placed 40 cm from the lens, where will the image be formed.
A cylindrical container 1.1 tall contains mercury to a certain depth. The rest of the cylinder is filled with water.If the pressure at the bottom of cylinder is two atmospheres, what is the depth.
Find the angle with respect to the ground
A space traveller whose mass is 104kg leaves earth. What are his weight and masson earth and in interplanetary space where there are no near planetary objects.
Compute the heat absorbed by the gas and work done by the gas during expansion.
Suppose the space shuttle is in orbit 460km from the Earth's surface, and circles the Earth about once every 93.80 minutes. Find the centripetal acceleration of the space shuttle in its orbit. Express your answer in terms of g, gravitational accelera..
Change values of the initial position, initial velocity, and the acceleration of the car so that its center follows the same path as the dot. What is the equation that describes motion of the dot.
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