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Q. The longest "string" (a thick metal wire) on a particular piano is 3.0 m long and has a tension of 300.0 N. It vibrates with a fundamental frequency of 27.5 Hz. What is the total mass of the wire.
Q. You push with a 20 N horizontal force on a 2 kg mass resting on a horizontal surface against a horizontal friction force of 12 N. What is the acceleration?
What is the length of the greatest and thinnest string that can be located under a tension of 860 without breaking .
An engineer is designing a pacemaker for cardiac patients. For the 20 year old woman, how many times must device have to beat for her to have a normal life expectancy.
In a car lift, the output plunger has a radius of 9cm. the weight of the plunger and the car is 21600N. What is the gauge pressure of the hydraulic oil used in the operating lift.
What is the coefficient of static friction
Jupiter is 23.10 m/s2. What is the ratio of your speed on Jupiter to your speed on Earth when you have dropped 45.0 m? Overlook the effects of air resistance and suppose that you start at rest.
Explain how Gestalt psychologists understand perceptual organization, including the discussion of form perception, depth perception, and perceptual constancy.
The displacement of an object moving under uniform acceleration is some function of time and the acceleration. Suppose we write this displacement as s=ka^mt^n, where k is the dimensional constant. Show by dimensional analysis that this expression ..
The coefficient of expansion of iron and zinc
Find out the depth of the kerosene
What is the angular velocity in rad/s . What is the least pressure obtained inside the bottle? What will happen when this pressure is reached.
An 1150-kg car pulls a 450-kg trailer. The car exerts a horizontal force of 3,800 N against the ground in order to accelerate. What force does the car exert on the trailer? Assume an effective friction coefficient of 0.15 for the trailer.
Compute coefficient of kinetic friction
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