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A 1000 kg cannon is pointed at 30 degrees to the horizontal. Its muzzle speed is 300 m/s. It fires a ball, mass 5 kg. At what angle and speed will the ball fly out? Be careful only to use conservation of momentum in the horizontal direction.
A 0.30 kg puck, initially at rest on a frictionless horizontal surface, is struck by a 0.20 kg puck that is initially moving along the x axis with a velocity of 1.8 m/s. Find the fraction of kinetic energy lost in the collision
On a banked race track, the smallest circular path on which cars can move has a radius of 120 m, while the largest has a radius 155 m, Find the smallest speed at which cars can move on this track without relying on friction
In the deep ocean, a water wave with wavelength 95 m travels at 12 m/s. What will be the vertical position of the boat
Three identical point charges each of charge q are located at the vertices of an equilateral triangle, Find a symbolic expression for the electric potential at the center of the triangle
How fast is the mass moving at the top of its new path (directly above the peg)?
The density of ice is 917 kg/m3. What fraction of the volume of a piece of ice will be above the water when it is floating in fresh water, Fraction of the volume above the water
A proposed space station includes living quarters in a circular ring 60.5 m in diameter. At what angular speed should the ring rotate
Two wires, each of length 1.2 m, are stretched between two fixed supports. Find the speed at which the individual waves travel on each wire
A pitot tube on the nose of an airplane measures a stagnation pressure of 2.5 atmospheres. what is the speed of the airplane
What is the magnitude of the acceleration of rock.
A 5?, 10?, and 15? resistor are connected in parallel and the combination connected in parallel to a 15 V battery with negligible resistance. What is the current through the battery
Calculate the self-inductance of a 55.0 cm long, 10.0 cm diameter solenoid having 1000 loops. How fast can it be turned off if the induced emf cannot exceed 3.00 V
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