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Question: A spring with a spring constant of 85 N/m is stretched a distance of 0.45 m from its relaxed position.
Part A: By how much does the spring's potential energy change?
I want help to find by how much does the spring's potential energy change.
A car is approaching a reflecting wall. A stationary observer behind the car hears a sound of frequency 790 Hz from the car horn and a sound of frequency 813 Hz from the wall. What is the frequency of the car horn
When a rifle is fired, the person firing the rifle absorbs the recoil. Consider an Olympic biathlete firing a competition rifle. What is the magnitude of the force absorbed by the athlete
A heat engine does 7150 Joule of work per cycle while absorbing 11.2 kcal of heat from a high temperature reservoir. Estimate what is the efficiency of this engine
During a lunar eclipse, a picture of the moon (which has a diameter of 3.48 × 106 m and is 3.86 × 108 m from the earth) is taken with a camera whose lens has a focal length of 320 mm. What is the diameter of the image on the film
A block weighing 15.0 N is attached to the lower end of a vertical spring (k = 122.0 N/m), What is the maximum kinetic energy of the block as it oscillates
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A pendulum bob passes through the lowest part of its path at speed of 2 m/s. What is the tension in the pendulum cable at this point if the pendulum is 80 cm long
A cylinder by a piston contains .250 mol of ideal oxygen at a pressure of 2.40 x 10 5 Pa and a temperature of 355K.The gas first expands isobaric ally to twice its original volume. It is then compressed isothermally back to its original volume and..
a long pipe of outer radius 3.40 cm and inner radius 2.89 cm carries a uniform charge density of 2.22 mcm3. using
A man enters a tall tower, needing to know its height. He notes that a long pendulum extends from the ceiling almost to the floor and that its period is 16.1 s. How tall is the tower
You are in a kayak which can move at a velocity of 2.6 m/s when in still water. You are attempting to cross a river which is 110 across, How long does it take you to get to the other side
a surface is so constructed that at all points on the surface the vector points outward. therefore it can be said
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