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A basketball player is balancing a spinning basketball on the tip of his finger. The angular velocity of the ball slows down from 18 rad/s to 12 rad/s in a time of 6.0 s. The angular displacement of the ball, in radians is,
A tennis player receives a shot with the ball of mass 0.060kg travelling horizontally at v=43 m/s and returns the shot with the ball travelling horizontally at 60.00 m/s in the opposite direction.
A 7 g bullet collides horizonally with a 43 g block resting on a frictionless horizontal surface as shown in the accompany diagram. The bullet remain embedded in the block and subsequently causes the block to slide down a frictionless slope onto a..
A 50 kg pole vaulter running at 10 m/s vaults over the bar. if the vaulter's horizontal component of velocity over the bar is 1 m/s and air resistance is disregarded, how high was the jump.
a ball is thrown vertically upward with a speed of 25m/s, how long does it take to reach its highest point
A ball is thrown from the top of a building upward at an angle of 46 degrees to the horizontal and with an initial speed of 30m/s. the speed of the ball just before it strikes the ground
Two magnetic air pucks are approaching each other for a glancing blow. This time one of the pucks will have an additional mass (lead collar). estimate the mass of the collar if the mass of the puck itself is 0.199 kg and the mass of the second puck..
There is air on both sides of a soap film. What is the smallest thickness that the soap film (n=1.42) can have and appear bright if illuminated with 431?nm light
A fluid has a density of 1040kg/m^3. If it rises to a height of 1.8cm in a 1.0mm diameter capillary tube, what is the surface tension of the liquid
Considering the equation for heat transfer through a wall, describe two simple ways to modify ahome to decrease the rate at which heat is lost through the walls.
The motion of a 25.0 kg mass on the end of a string is uniform circular motion. The magnitude of the tangential velocity of the mass is 5.0 m/s, Calculate the angular momentum of the mass
An alpha particle (q = +79e, m = 6.68 x10^-27kg) is fired from a distance of 10 cm at a gold nucleus (q = +79e). find the change in electric potential for the alpha partical
Illustrate the role of the Sun's differential rotation in the formation of sunspots. Explain (briefly) the 22 year solar cycle, stating its essential features. Estimate the y-component of magnetic force.
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