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A rifle is aimed horizontally at the center of a large target 200 meter away the initial speed of the bullet is 500 m/s,
1. Determine where does the bullet strike the target?
2. To hit the center of target, the barrel must be at an angle above the line of sight, calculate that angle?
in a photoelectric effect experiment, the cathode made of chromium (work function = 4.5 eV) is irradiated with ultraviolet light of wavelength 22 nm. what is the stopping potential
Consider a balloon being filled up with oxygen. You have approximately 30 moles of oxygen gas in this balloon with volume 1.3m3, what is the temperature of the molecules
a spacecraft has a nonrelativistic or classical momentum whose magnitude is 2.0 multiply.gif 1014 kg middot ms. the
Two children hang by their hands from the same tree branch. The branch is straight, and grows out from the tree trunk at an angle of 27.0° above the horizontal. What is the magnitude of the net torque exerted on the branch by the children
at some instant the velocity components of an electron moving between two charged parallel plates are vx ms and vy
q. a cardinal richmondena cardinalis of mass 3.90times10-2 and a baseball of mass 0.144 have the same kinetic energy.
A horizontal rope is tied from a house to a pulley and down to a paint bucket filled with sand. what is the mass of the bucket of sand
t the vertices of a square are located four identical positive point charges. what is the charge on one of the positive point charges
find the non-zero Christoffel symbols and the equations, of the geodesic, for the two dimensional case of move-ment on the surface of a cylinder of radius and show that the transformation is an invariance transformation by finding the function A
A ball is shot from the ground into the air. At a height of 8.6 m, the velocity is observed to be v = (8.1)i + (5.3)j in meters per second (i horizontal, j upward). To what maximum height will the ball rise
A block weighing 15.0 N rests on the floor. What force does the floor exert on the block
question1two towers have heights of 420 m and 565 m. if objects were dropped from the top of each what would be the
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