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A bungee cord is stretched between two poles with a force of 367N. The length of the cord is 33 meters and it has a mass of 6.1 kg. What is the velocity of a wave on this bungee cord?
An engine with reservoir temperatures of 387 K and 725 K operates at half the efficiency of a Carnot engine. If the hot reservoir supplies the engine 4670 J of heat energy during each cycle, how much net work does the engine do in a cycle?
You are moving into an apartment and take the elevator to the 6th floor. Suppose your weight is 630 N and that of yourbelongings is 970 N. (a) Determine the work doneby the elevator in lifting you and your belongings up to the 6thfloor (15.2 m) at ..
A farmhand pushes a 23 kilogram bale of hay 3.7 meter across the floor of a barn. If she exerts a horizontal force of 91 Newton on the hay, determine how much work has she done
write a problem containing at least three forces of different magnitudes and directions which results in a constant
a beam of polarized light strikes two polarizing sheets.The characteristic directions of the second is 90 degree with respect to incident light. Find angle betta for a transmitted beam intensity that is 0.10 times the incident beam intensity
You have a battery marked "6.00 V." When you draw a current of 0.223 A from it, the potential difference between its terminals is 5.01 V. What is the potential difference when you draw 0.537 A
0.75mol of argon gas is admitted to an evacuated 70cm3 container at 40 degrees C. estimate the final pressure of the gas
A 3 kg mass attached to a k=27N/m spring slides on a frictionless horizontal surface as simple harmonic oscillator. At t=0, x=-0.2 and v=3m/s. Find the amplitude and max velocity
the drawing shows an equilateral triangle each side of which has a length of 2.87 cm. point charges are fixed to each
An asteroid is in a nearly circular orbit of radius 5.668 AU about the Sun. Determine the period of this asteroid
question 1 what is the power rating of an appliance that uses 8 amps of current when plugged into a 120 volt
A(n) 0.597 kg football is thrown with a speed of 15.9 m/s. A stationary receiver catches the ball and brings it to rest in 0.00936 s. What is the magnitude of the impulse de livered to the ball? What is the average force exerted on the receiver?
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