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A steel cable is to support an elevator whose total (loaded)mass is not to exceed 3100kg. If the maximum acceleration of theelevator is 1.2m/s^2, calculate the diameter of the cable required.Assume a safty factor of 7.0.
A shell, fired from a cannon, has a muzzle speed (the speed as it leaves the barrel) of 800 ft/s. The barrel makes an angle of 45o with the horizontal and, for ease; the barrel opening is assumed to be at ground level.
An 80kg man falls our of a 1.5m tree starting at 0 speed. How much potential energy does he start with in the tree, Calculate the grounds force now converted to pounds
1. List real-life communications systems that use the wideband modulations. 2. Explain the reasons in which binary RF digital modulations are more power efficient than M-ary binary digital modulations.
A 76.1-%u03A9 resistor is connected in parallel with a 125.6-%u03A9 resistor. find the power dissipated in the 125.6-%u03A9 resistor
A 218.7 kg satellite is in a circular orbit of 26,273 miles (42,300,000 m) in radius. What is the velocity (speed) of the satellite
some types of glass have a range of indices of refraction of about 1.4 to 1.7. What is the range of the polarizing angle
A hollow, thin-walled cylinder and a solid sphere start from rest and roll without slipping down an inclined plane of length 3.0 m. find the angle between the inclined plane and the horizontal
Emily has a field with uniformly cut grass of height 2 cm which grows at a constant rate. How long would it sustain each animal alone
A spool whose inner core has a radius of 1.00 cm and whose end caps have a radius of 1.50 cm has a string tightly wound around the inner core. what is the speed of the spools ground-touching point
What is the force between two balloons with a negative charge of 2.6 x 10-10C if the balloons are 10.0 cm apart?
In coming to a stop, a car leaves skid marks 77m long on the highway. Assuming a deceleration of 8m/s2, estimate the speed of the car just before braking.
A cylindrical storage tank has a radius of 1.20 m. When filled to a height of 3.66 m, What is the density of the solvent
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