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a gun has a spring constant of 10N/cm. when the gun is inclined upward by 30 degree to the horizontal a 10 g ball is shot to the height of 2 m above the muzzle of the gun. what was the muzzle speed of the gun?
Make a drawing of a metal rod that has length 12cm and a total mass of 70g including two metal loops at both ends, which go around two metal poles. find the magnitude of the magnetic field in the region of the rod
question1vector a points alone the y access and has a magnitude of 100 units vector b points at an angle of 60 degrees
Two carts with masses of 5.00 kg and 2.64 kg move toward each other on a frictionless track with speeds of 4.86 m/s and 3.46 m/s correspondingly. The carts stick together after colliding head-on. Find the final speed.
A singly ionized 24Mg ion (mass 3.983 10-26 kg) is accelerated through a 2.8 kV potential difference and deflected in a magnetic field of 500 G in a mass spectrometer. Find the radius of curvature of the orbit for the ion
You're carrying a 4 m long, 23 poles to a construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold other end of the pole 35 from its tip. How much force should you exert to keep the pole motionle..
The force involved in a collision is 1.0 × 10^2 newtons. What is the value of the change in momentum
A liquid with a density of 55 lbs/cubic ft is traveling through a pipe at a velocity of 115 ft/sec and its static pressure is 15 psi, what is its total head in ft
A car drives north at 42 mi/h for 10 {rm min} and then turns east and goes 5.0 {rm mi} at 62 mi/h. at last, it goes southwest at 30 mi/h for 6.0 {rm min}.
An ice-making machine operates in a Carnot cycle. It takes heat from water at 0.0 ?C and rejects heat to a room of temperature 21.5?C, How much energy must be supplied to the device
Density is the ratio of an object;s mass to its volume. Would you except density to be a vector or a sdcalar quanity? Explain.
Two boxes, A and B, are connected by a (mass-less) cord and are resting on a smooth (frictionless) table. Find the tension force in the cord connecting the two boxes
A box of books weighing 334 N is shoved across the floor by a force of 479 N exerted downward at an angle of 33° below the horizontal. What is the maximum coefficient of kinetic friction between the box and the floor that allows the box to move with ..
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