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A father racing his son has 1/2 the kinetic energy of the son, who has 1/3 the mass of the father. The father speeds up by 1.6 m/s and then has the same kinetic energy as the son. What are the original speeds of
(a) the father and
(b) the son?
A particle moves along the x axis unset the influence of a stationary object. The force exerted on the particle is given bu F=8x^3, where f is in newton's and x is in meters. if x=0 is taken to be the zero of potential energy, then the potential e..
You are standing on a platform and you throw a 5kg ball horizontally with a speed of 10m/s. Find the time it takes the ball to hit the ground
You and a friend are studying late at night. There are three 150 W light bulbs and a radio with an internal resistance of 79.0, How much electrical power are you using
A diver 60 m deep in 10 C fresh water exhales a 1.5-cm-diameter bubble. find the bubble's diameter just as it reaches the surface of the lake
A gold prospector finds a solid rock that is composed solely of quartz and gold. The mass and volume of the rock are, Find the mass of the gold in the rock
A tennis ball of mass m=0.057kg and speed v=24 m/s strikes a wall at a 45 degrees angle and rebounds with the same speed at 45 degrees. What is the direction of the impulse given to the ball
A stretched rubber band has the length of 0.04 m and a fundamental frequency of 462 Hz. What is the speed at which waves travel on the rubber band.
A coin placed on a turntable rotating at 34.1 rev/min will stay there if its center is placed no further than 10.0 cm from the axis of rotation, What is the coefficient of friction between the coin and turntable
A 3 kg block moves down a hill that makes a 40° angle with the horizontal direction, what is the magnitude of the acceleration of the block
In a circus act at the Ringling Bros. and Barnum Bailey Circus, a human cannonball was fired from a large cannon with a muzzle speed of 87 km/h. How far from the cannon did he land
A certain type of laser emits light that has a frequency of 5.6 x 10^14 Hz. The light, however, occurs as a series of short pulses, each lasting for a time of 3.9 x 10-11 s.
The isotope 204 Pb decays via alpha decay. The measured atomic mass of 204 Pb is 203.97304 u , Calculate the kinetic energy of the alpha particle
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