A golf has a diameter of millimeters mad mass of grams. What is the number of grams per cubic millimeter of the material used to make the golf ball? Round to the nearest ten-thousandth.
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The figure shows a golf ball passing through a windmill at a miniature golf course. The windmill has 8 blades and rotates at an angular speed of 1.60 rad/s. The opening between successive blades is equal to the width of a blade. A golf ball of diameter 5.45 x 10-2 m is just passing by one of the rotating blades. What must be the minimum speed of the ball so that it will not be hit by the next blade? Thanks :)
The figure shows a golf ball passing through a windmill at a miniature golf course. The windmill has 8 blades and rotates at an angular speed of 2.92 rad/s. The opening between successive blades is equal to the width of a blade. A golf ball of diameter 5.87 x 10-2 m is just passing by one of the rotating blades. What must be the minimum speed of the ball so that it will not be hit by the next blade?
Here is a popular lecture demonstration that you can perform athome. Place a golf ball on top of a basketball, and drop the pairfrom rest so they fall to the ground. (For reasons that shouldbecome clear once you solve this problem, do not attempt to do thisexperiment inside, but outdoors instead!) With a little practice,you can achieve the situation pictured here: The golf ball stays ontop of the basketball until the basketball hits the floor. The massof the golf ball is 0.0459 kg, and the mass of the basketball is0.591 kg.a) If the balls are released from a height where the bottom of thebasketball is at 0.741 m above the ground, what is the absolutevalue of the basketballâs momentum just before it hits theground?b) What is the absolute value of the momentum of the golf ball atthis instant?c) Treat the collision of the basketball with the floor and thecollision of the golf ball with the basketball as totally elasticcollisions in one dimension. What is the absolute magnitude of themomentum of the golf ball after these collisions?d) Now comes the interesting question: How high, measured from theground, will the golf ball bounce up after its collision with thebasketball? (Hint: do not forget to add the diameter of thebasketball, 24.15 cm).http://www.flickr.com/photos/60996491@N03/5592819537/i found a and b section a)2.253 kg*m/s and b)0.175 kg*m/s but idont know c and d. please help me....
