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A car at the Indianapolis-500 accelerates uniformly from the pitarea, going from rest to 285 km/h in asemicircular arc with a radius of 196m.
Determine the tangential acceleration of the car when it is halfwaythrough the turn, assuming constant tangential acceleration.
m/s2
Determine the radial acceleration of the car at this time.
If the curve were flat, what would the coefficient of staticfriction have to be between the tires and the roadbed to providethis acceleration with no slipping or skidding?
a certain radioisotope has a half-life of 7.45 days. what percentage of an initial sample of this isotope remains after
A 62.5 skier is moving at 6.00 on a frictionless, horizontal snow-covered plateau when she encounters a rough patch 3.10 long. How fast is the skier moving when she gets to the bottom of the hill
A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed of81.0m/sat ground level. What is its velocity just before it hits the ground
q1. a chair of mass 14.0 kg lies atop a horizontal floor the floor is not frictionless. you push on the chair with a
electronics and inhabitants of the international space station generate a significant amount of thermal energy that the
A can of soup has a mass 420 g, height 13 cm, and diameter 5.6 cm. Calculate the moment of inertia of the can if it takes 1.5 s to reach the bottom of the incline
Suppose the distance between two objects was doubled and the mass of one of the objects was suddenly cut in a third. How would the gravitational force change
A major league pitcher can throw a baseball in excess of 42.9 m/s. If a ball is thrown horizontally at this speed, how much will it drop by time it reaches the catcher who is 18 m away from the point of release.
A hunter who is a bit of a braggart claims that from a distance of 1.7 km he can selectively shoot either of two squirrels who are sitting 8.0 centimeters apart on the same branch of a tree. Determine the diameter of the pupils of his eyes
An object is solid throughtout. When the object is completely submerged in ethyl alcohol, its appart weight is 15.2 N. When completely submerged in water, its apparent weight is 13.7 N. What is the volume of the object?
A rowboat with a mass of 94 kg carries a 61 kg rower and 34 kg of water that has accumulated in the bottom. What is the subsequent speed of the boat
A sphere of radius 10m and a mass of 5kg is rotated from restto achieve a rotational speed of 20 rad/sec in 10 secs? What is the angular acceleration of this sphere
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