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A cannonball, mass 50 kg, is shot out of cannon at an angle of 75 degrees with respect to the horizontal. The initial speed is 10 m/s. the ball lands at the same height from which it began. IGNORE AIR DRAG. A) what is the maximum height of the cannonball? b) what is the total time in the air? c) obtain the velocity at t= 0.50 s. ( velocity is a VECTOR! Clearly define your coordinate system.?
An 9.00 {\rm kg} point mass and a 15.0 {\rm kg} point mass are held in place 50.0 {\rm cm} apart. Find the magnitude of the acceleration of the particle
A point charge 8.00 nC is at the center of a cube with sides of length 0.200m. compute the electric flux through the surface of the cube
A Federation starship ( 2.20×10^6kg ) uses its tractor beam to pull a shuttlecraft ( 2.20×10^4kg ) aboard from a distance of 12.0km away. The tractor beam exerts a constant force of 4.0×104N on the shuttlecraft. Both spacecraft are initially at..
The density of gasoline at 0 degrees celsius is 0.68E3 kg/m^3. What is the density on a hot day when the temperature is 35 degrees celsius
A shell is fired from a gun with a muzzle velocity of 25 m/s, at an angle of 60° with the horizontal. How far from the gun does the other fragment land
A glass lens has a convex surface with radius 25.0 cm and a concave surface with a radius of 50.0 cm. The glass has index of refraction of 1.51. Calculate the focal length of this lens
A 76 g, 31 cm long road hang vertically on frictionless horizontal axle passing through its center a 10 gram ball of clay travelling horizontally at 2.6m/s hits and stick to the very bottom tip of the rod. To what maximum angle, measured from ..
The length of a spring increases by6.9cm from its relaxed length when a mass of1.7kg is hanging in equilibrium from the spring. How much elastic potential energy is stored in the spring
An insulated vertical piston cylinder device initialy contains 10kg of water, 6 kg of which is in the vapor phase. Determine the mass of steam that has entered
The position function x(t) of a particle moving along an x axis is x = 4.5 - 4.5t2, with x in meters and t in seconds.
Adjacent antinodes of a standing wave on a string are 15.0cm apart. A particle at an antinode oscillates in simple harmonic motion with amplitude 0.850 cm and period 0.0750 s.
Two identical masses are connected to vertical springs each with a force constant k the coordinates x1 and x2 measure the distance of each mass from its equilibrium position write newton's 2nd law for each mass.
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