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A massive steel cable drags a 20.0kg block across a horizontal, frictionless surface. A 115N force applied to the cable causes the block to reach a speed of 4.30m/s in 2.30s. What is the difference in tension between the two ends of the cable?
What is the net entropy change
A small bird's wings can undergo a maximum displacement amplitude of 5.00 cm, what is the oscillation frequency of the wing tips
Children are playing on a vertical slide that is 10m high. If humps were added to this slide, but the height remained constant, how would this effect the final speed
You need to construct an RC circut with a time constant of .25s and you are given a selection of 1, 10, 100, and 1000Ohms resistors and a selection of 1, 10, 100, and 1000 micro Faradays Capacitors.
A uniform electric field has a magnitude 330 N/C and is directed along the +y-axis. what is the change in potential energy for this charge
I am working on a project where we need to find an optimal transfer for a spacecraft from LEO to the L4 LaGrange point in the Earth-Moon system. In order to calculate the delta V for the arrival at the LaGrange point, we need to know the "veloci..
Two blocks are connected by a cord passing over a small (frictionless) pulley as shown below. The angle ? = 30 degrees, what is the mass, M, of the large block
Calculate the absorbed dose in Gy to the skin of a person which receives 1500 ergs/gm of beta radiation from a cloud of radioactive krypton-85 gas.
A drum of chemical waste has a lid with a radius of 35.0 cm. To open the thing, a torque of 367Nm is required. With what force must you work on the thing
Two slits spaced 0.280mm apart are placed 0.640m from a screen and illuminated by coherent light with a wavelength of 680nm. What is the distance on the screen from the center of the central maximum to the first minimum
What impulse Ft should be supplied to bring the ball to rest? If the ball is stopped in 0.03 s, what is the average force of the ball on the catcher's hand.
The rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket provides. What is the current coming from the wall socket
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