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A revolutionary war cannon, with a mass of 2270 kg, fires a 16.5 kgball horizontally. The cannonball has a speed of 137 m/s after it has left the barrel.When the cannon was free to move across the ground (ignorefriction), the velocity of the cannon after firing was .98863 m/sin the opposite direction. If the same charge was used, how much faster would the ball travel if the cannon were mounted rigidly andall other parameters remained the same?
Each second, 5525 m3 of water flows over the 670-m-wide cliff of the Horseshoe Falls portion of Niagara Falls. How far from the base of the cliff is the barrel
A vertical tube open at the top contains 5.2 cm of oil (density 0.82 g/cm^3) floating on 5.2 cm of water. Find out the gauge pressure at the bottom of the tube.
A spotlight on a boat is y = 2.7 m above the water, and the light strikes the water at a point that is x = 9.4 m horizontally displaced from the spotlight (see the drawing). The depth of the water is 4.0 m. Determine the distance d, which locates the..
A metal sphere hangs from a string and has 4 kg of mass. The sphere has a charge of +2.3 µC. What is the electric force on the metal sphere if the magnitude of the electric field is 106 N/C
In a Young's double-slit experiment, the seventh dark fringe islocated 0.033 m to the side of the central bright fringe on a flatscreen, which is 1.1 m away from the slits. The separation betweenthe slits is 1.6 x 10-4 m. What is the wavelength of..
A covex lens of focal length 10 cm placed 40 cm in front of aconcave lens of focal length 25 cm.A small object is placed 20 cmin front of the convex lens calculate the location of the finalimage relative to the second lens. Include a ray diagram
a wave of amplitude ai and wave number ki is incident on the junction of two strings. if the wave number in the second
Racing drivers like to warm up the tyres of their car as soon as possible. One reason is that warm tyres grip the road better but the temperature also affects the pressure of the air into he tyres.
A car with a mass of 1500kg moving at 40m/s comes to a stop in8 seconds. What is the change in momentum of the car
two events occur in an inertial system k at the same time but 7 km apart. what is the time difference measured in a
q1. george of the jungle with mass m swings on a light vine hanging from a stationary tree branch. a second vine of
a thin metallic spherical shell of radius 40.1 cm has a total charge of 7.65 ?c uniformly distributed on it. at the
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