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Q. A 0.50 kg ball that is tied to the end of a 1.30 m light cord is revolved in a horizontal plane with the cord making a 30° angle, with the vertical. If the cord can withstand a maximum tension of 9.5 N, what is the highest speed at which ball can move?
An emf is induced in a conducting loop of wire 1.16 m long as its shape is changed from square to circular.
A board is 6 meters long. The center of mass is in the 2 meters from the left end. The board has a weight of 320 Newton's. How much force in Newtons is necessary to lift the right end while the other end stays on the ground.
The speed of light in a transparent medium (such as glass) is less than the speed of light in a vacuum. Is this a violation of the theory of relativity.
An Olympic basketball player shoots towards a basket that is 5.36m horizontally from her and 3.05m above the floor. The ball leaves her hand 1.83m above the floor at an angle of 45.0o above the horizontal. What initial speed must she give the ball so..
Find the magnitude of the acceleration of the particle. What are the x- and y-coordinates of the shell where it explodes,associated to its firing point.
Your 300 ml cup of coffee is too hot to drink when served at 92C.What is the mass of an ice cube, taken from a -19C freezer, that will cool your coffee to a pleasant 61C.
If she is served 200 of coffee at 85 in a well-insulated container, how much ice at 0 must she add to obtain a final temperature of 33.
What is the required average power.
The density of ice is 917 kg/m3 and the density of sea water is 1025 kg/m3. A swimming polar bear climbs onto a piece of floating ice that has a volume of 5.2m3. What is weight of the heaviest bear that the ice can support without sinking complete..
what are the magnitude and direction of its acceleration. find out the magnitude of the charge on the moving particle.
A golfer drives a 0.046kg golf ball from an elevated tee, giving the ball an initial horizontal velocity of 45 m/s. (a) what is the magnitude of the average force exerted by the club on the ball if the contact time for the golf club on the ball du..
select the quantity that has changed(velocity or speed) for a car that travels north at 88 km/h and then turns east while continuing to move at 88 km/h. define your answer.
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