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A rifle is aimed horizontally at a target 46 away. The bullet hits the target 2.5 below the aim point.
(a) What was the bullet's flight time? (b) What was the bullet's speed as it left the barrel?
A shopper in a supermarket pushes a cart with a force of 52 N directed at an angle of 25° below the horizontal. What is the net work done on the cart by all forces
A 54.5-kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.646 and 0.321, respectively. What horizontal pushing force is required to just start the crate moving
question a beam of sunlight encounters a plate of crown glass at a 36.50deg angle of incidence. crown glass has n
1 a heat engine uses 2400 j of input heat energy while exhausting 400j of heat to the environment in one complete
question a roller coaster car moves 200 ft horizontally and then rises 135 ft at an angle of 30.0deg above the
Gas in a container expands at a constant pres- sure of 88 atm. Find the work done by the gas if the initial volume is 5 L and the final volume is 10 L . Answer in units of J
Light of wavelength 565 nm incident on a pair of slits produces an interference pattern on a distant screen in which the separation between adjacent bright fringes at the center of the pattern is 0.569 cm. What is the wavelength of the second sourc..
A satellite of mass 6000 kg orbits the Earth in a circular orbit of radius of 9.0*10^6 m (this is above the Earth's atmosphere). Using the momentum principle, find the speed of the satellite in orbit
A hockey puck is hit on a frozen lake and starts moving with aconstant speed of 12 m/s. what is the average value of the coefficient of kineticfriction between the puck and the ice
A golf ball of mass 4.50 10-2 kg is struck by a club. Compute the average force the club exerts on the ball by finding its average acceleration
q1. a 60-g ball travelling at 22.0 ms is bounced off a brick wall and rebounds at 20.0 ms. a high-speed camera records
A charge of density p is distributed uniformly along an arc representing a half of a cirle of radius r. Determine the electric field intensity vector at an arbitrary point
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