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Engineers can determine properties of a structure that is modeled as damped spring oscillator-such as a bridge-by applying a driving force to it. A weakly damped spring oscillator of mass 0.269 kg is driven by a sinusoidal force at the oscillator\'s resonance frequency of 23.5 Hz. a. )Find the value of the spring constant. (N/m) b.)The amplitude of the driving force is 0.489 N and the amplitude of the oscillator\'s steady-state motion in response to this driving force is 0.853 m. What is the oscillator\'s damping constant? (kg/s)
A car goes round a flat curve at a speed of 32 ms-1. If the radius of the curve is 200 m, find the minimum value for the coefficient of friction so that the car can go around the curve without skidding.
Two particles, with charges of q1 = 60.0nC and q2 = 60.0nC, are placed at the points with coordinates (0, 12.00 cm) and (0, 12.00 cm). A particle with charge q3 = 30.0 nC is located at the origin.(a) Find the electric potential energy of the confi..
A ball is thrown with an initial velocity of 14m/s. using the approximate value g=10 m/s^2, at what time does the ball reach its high point?
A flight attendant pulls her 73 N flight bag a distance of 245 m along a level airport floor at a constant velocity. The force she exerts is 45 N at an angle of 54° above the horizontal.
An air molecule is moving at a speed of 455 m/s. How many meters would the molecule move throughout 7ms (milliseconds) if it didn't collide with any other molecules.
A 91kg water skier floating in a lake is pulled from rest to a speed of 12 m/s in a distance of 25 m.What is the net force exerted on the skier, suppose his acceleration is constant.
A 63 kg girl weighs herself by standing on a scale in an elevator. What is the force exerted by the scale while the elevator is descending at a constant speed of 10.0 m/s.
It is 150 cm from your eyes to your toes. You are standing 196 cm in front of a tall mirror. How far is it from your eyes to the image of your toes.
Determine how long it would take an astronaut to fall from a height of 2 meters on the Moon. Compare this time to the time it would take the astronaut to fall the same 2 meters on the Earth. Also, compare the time to the time it would take on the ..
A 0.2 object is swung in a vertical circular path on a string 0.1 m long. The acceleration of gravity is 9.8 m/s^2. If a constant speed of 4.07 m/s is maintained, what is hte tension in string when the object is at the top of the circle? Answer in..
The temperature of 1.5 kg of ethanol is 37c. What would the final temperature be if 80 000J of energy as heat is added to the ethanol.
At each of the designated points, rotate the given vector to indicate the direction of the force exerted by the water on either the inside of fishbowl (for points A and B) or the outside of the goldfish (for points C, D, and E).
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