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A soldier has a huge contraption that notches a large 4 kg arrow (it looks more like a lance) in a massive bow and uses a winch system to draw the arrow back to set the bow. The soldier does 111 J of work in the process setting the bow/arrow combination and then releases the arrow. What is the speed of the arrow?
What is the new frequency of the string that was tightened. find the magnitude of the net force acting on the car during this time.
Take the questionnaire of Psychology and Your Life. Are you more consistent with right or left brain orientation? How will your strengths help you with your future goals.
In the Bohr model of the hydrogen atom, an electron in the 3rd excited state moves at a speed of 2.43 105 m/s, What is the effective current associated with this orbiting electron
I hold a flat mirror 24.6 cm in front of my face. There is a freckle on my face 1 mm in diameter. Find the angular size of the freckle on the image of my face as viewed by my eye
At its highest temperature, a space heater has a resistance of 15.5 ?, What is the average power output of the space heater
Find out the angular momentum and angular speed of the disk. what is the magnitude of the force (in mN) between the two charges.
A diffraction grating produces a first-order maximum at an angle of 25.0 degree. What is the angle of the second-order maximum
An artillery shell is fired with an initial velocity of 300 m/s at 47.5° above the horizontal. To clear an avalanche, it explodes on a mountainside 47 s after firing. What is the x and y components of the shell where it explodes, relative to its f..
An object of mass 1.0kg is attached to a spring with spring constant 15 N/m. what is the amplitude of oscillation
A diver 50 m deep in 10 degrees Celsius fresh water exhales a 1.2 cm diameter bubble. What is the bubble's diameter just as it reaches the surface of the lake, where the water temperature is 35 degrees Celsius? Suppose that the air bubble is always i..
Find out the normal force exerted on the crate by the elevator.
Determine the least value of n for which there is total internal reflection on the vertical surface.
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