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An elevator with a mass of 4850 kilogram is to be designed therefore that the maximum acceleration is 0.0680 g. Find what the maximum and minimum forces the motor should exert on the supporting cable?
Light waves with two dissimilar wavelengths, 632 nm and 474 nm, pass simultaneously during a single slit whose width is 5.71 x10-5 m and strike a screen 1.30 m from the slit. Two diffraction patterns are formed on the screen.
Protons can escape from the surface of the sun if their kinetic energy is sufficient to overcome the gravitational potential energy. a) Calculate the minimum speed necessary for escape
Illustrate what are these accounting shenanigans? Briefly explain each. Do internet research to answer the question.
A 1.0 kg ball is thrown horizontally with a velocity of 15 m/s against the wall. If the ball rebounds horizontally by a velocity of 13m/s and the contact time is .020 s, what is the force exerted on the ball on the wall?
A student wishes to determine the coeffiecient of static between a block of material and a wooden board. determine the coefficient of kinetic friction
You stand with your nose 5.0cm from the surface of a reflecting ball, and your nose's image appears three-quarters full size. What is the balls diameter?
A wave has angular frequency 135 rad/s and wavelength 1.70 m. Calculate the following values of the wave. estimate the angular wave number
A 818 kg car is going 28 m/s and the driver has to slam on his brakes to prevent an accident. find the change in temperature of the brake pads and rotors
Steam enters a nozzle operating at steady state with p = 40 bar and T =400oC, and a velocity of 10 m/s. Determine the exit area of the nozzle
A person's body is covered with 1.69 m2 of wool clothing. The thickness of the wool is 2.12 × 10-3 m. How much heat per second does the person lose due to conduction
Tarzan swings on a 30.0-m-long vine initially inclined at an angle of 30.0° with the vertical. What is his speed at the bottom of the swing if he starts from rest
In order to clearly read a book 24 cm away, a farsighted girl needs an image to be 35 cm from her eyes. What focal length is necessary for lens in her eyeglasses.
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