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Question: A UFO lowers a 278kg stairway of length 5.29 m from under its belly until it is fully extended at an angle of 54 degree. The stairway is free to pivot on hinge and it is supported at its far end by vertical cable.
Question 1: What is the tension in the cable?
Please explain each step and equations used for above question.
Suppose the ball leaves the pitcher's hand by velocity of 15 m/sec directed horizontally. Take the point of throw to be 2m above ground. Where does the ball hit the ground?
A map of a burned area obtained from remote sensing contains 120 pixels. The remote sensing image shows that the fire is isolated to 73 of the 120 pixels.
An LR circuit contains an ideal 60-V battery, a 51-H inductor having no resistance, a 21- resistor, and a switch S, all in series. what is the current in the circuit
An ideal monatomic gas expands adiabatically from an initial temperature of 368 K and volume of 4.6 m3 to a final volume of 11 m3. If the initial pressure is 1.5 multiplied by Patm, how much work is completed on the gas.
Emilie's potter's wheel rotates with a constant 2.40rad/s2 angular acceleration. What was the angular velocity of the wheel at the beginning of the 3.20s interval
A 59 g ball attached to a spring with spring constant 2.9 N/m oscillates horizontally on a frictionless table. Its velocity is 15.4 cm/s when x=-4.79 cm. What is the ball's maximum acceleration
A 51 crate, starting from rest, is pulled across a floor with a constant horizontal force of 250 . For the first 11.5 the floor is frictionless, and for the next 11.5 the coefficient of friction is 0.16. what's the final speed.
A chimp jumps up from a trampoline and lands on the ground, 1.2 meters below. the total time taken was .095 secons. A. what is the initial velocity B. what is the final velocity C. what is the maximum height above the ground please show work so i ..
Polarized light goes through two Polaroid sheets. The angle between the two sheets is 50°. what is the angle between the original light and the first sheet
A projectile is fired with an initial speed of 36.7m/sat an angle of 42.1 above the horizontal on a long flat firing range. Decide the total time in the air. Decide the speed of the projectile 1.30s after firing. Decide the maximum height reached by ..
A circular loop in the plane of the paper lies in a 0.7 T magnetic field pointing into the paper. find what is the average induced current
Two space ships approach the earth from opposite directions. According to an observer on earth space ship moves at .754c, What is the speed of a observed from b and speed of b observed from a
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