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A man whose weight = 584N is doing pushups. His center of gravity is located 0.410m from where his hands tough the ground and 0.840m from where his feet touch the ground. Find the normal fource exerted by the floor on EACH hand and EACH foot, assuming that the person holds this position steady.
A bat is pursuing an insect and using echolocation of 60-kHz sound waves to track the insect. find the difference in the two echo times the bat measures
An object is sliding on a horizontal surface. The coefficient of kinetic friction between the object and the surface is 0.250. how far will the object travel before it stops
A luge (sled) and its rider, with a total mass of 85 kg, emerge from a downhill track onto a horizontal straight track with an initial speed of 37 m/s, What distance do they travel while decelerating
When the cylinder is rotating at 2.0 revolutions per second, determine the magnitude of the centripetal acceleration at the outer wall?
A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 39.2m/s2. Find the maximum height ymax reached by the rocket
Two charges, -15 and +3.7 µC, are fixed in place and separated by 2.8 m. (a) At what spot along a line through the charges is the net electric field zero? Locate this spot relative to the positive charge. (Hint: The spot does not necessarily lie b..
In a house the temperature at the surface of a window is 25 degreescelsius. The temperature outside at the window surface is 5.0degrees celsius. What is the temperature at the outside window surface
Slamming on the brakes, a driver decelerates her car from 25.0 m/s to 15 m/s in 3.5 s. Find her average speed assuming the acceleration was unifrom.
A car is traveling at 67.53 mph. The driver applies the brakes and the car decelerates at 5.68 m/s2. What is the stopping distance in meters
A highway curve with a radius of 550 m is banked properly for a car travelling 130 km/h. If a 1660- kg Porshe 928S rounds the curve at 250 km/h, how much sideways force should the tires exert against the road if the car does not skid.
A tank of water 3.00m deep sits on a table 1.00 m tall. A hole is located 2.0m from the bottom of the tank. Water flows out of hole and strikes the ground. Where does it strike the ground.
A certain lightbulb is rated at 60.0 W when operating at an rms voltage of 120 V. What is the peak voltage applied across the bulb
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