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In a pool game, the cue ball, which has an initial speed of 8.0 m/s, make an elastic collision with the eight ball, which is initially at rest. After the collision, the eight ball moves at an angle of 35° to the original direction of the cue ball. (a) Find the direction of motion of the cue ball after the collision. ° (from the original line of motion) (b) Find the speed of each ball. Assume that the balls have equal mass. m/s (cue ball) m/s (eight ball)
q1. what will be the equilibrium temperature when a 223 g block of copper at 258 c is placed in the 178 g aluminium
A large group of football fans comes to the game with colored cards that spell out the name of their team when held up simultaneously. Most of the cards are colored blue, find the maximum diameter (in mm) of the spectator's pupils
How far from a point on the floor directly below the edge. Why is it a good idea to have your hand extended forward when you are getting ready to catch the fast moving baseball with your bare hand.
q1.a bat in a cave emits a sound pulse and receives an echo 0.22 second later. assuming that the speed of sound is 339
A skier is gliding along at 3.6 m/s on horizontal, frictionless snow. He suddenly starts down a 10 degree incline. His speed at the bottom is 17 m/s. What is the length of the incline
Physics: Find the shear stress on the rod and vertical deflection at the end of the rod, A horizontal aluminum rod 4.2 cm in diameter projects 7.6 cm from a wall. A 1400 kg object is suspended from the end of the rod
The length of a beam increases by 1.46mm when its temperature is raised from 44.92oC to 90.5 oC. What is the length of the beam at the initial temperature? The thermal expansion coefficient of the material is 0.000053 /oC.
A Young's double-slit experiment is performed using light that has a wavelength of 623 nm. Calculate the angle that locates the first-order bright fringes
An air-track glider attached to a spring oscillates with a period of 1.50 seconds. At t = 0, the glider is 4.40 cm left of the equilibrium position and moving to the right at 31.9 cm/s. What is the phase constant?
the electric potential at a position located a distance of 22.8 mm from a positive point charge of 8.00times10-9c and
What angle does the rope make with the horizontal.
A space vehicle is traveling at 4200 km/h relative to the Earth when the exhausted rocket motor is disengaged, What is the speed (km/h) of the command module relative to Earth after the separation
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