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A horse ran the Kentucky Derby with times of 25.2 s, 24.0 s, 23.8s, and 23.0 s for the quarter mile. (a) Discover his average speed through each quarter-mile segment. (b) Assuming that the horses instantaneous speed at the finish line was the same as his average speed during the final quarter mile, discover his average acceleration for the entire race.
Consider a perfectlyelastic collision between two objects of equal mass. What are the final velocities after the collision
a wheel starting from rest has a constant angular acceleration of 1.2 rads2 . in a 1.8-s interval it turns through an
A 0.500-kg glider, attached to the end of an ideal spring with force constant k=450 n/m, undergoes simple harmonic motion with an amplitude 0.040 m. Compute the maximum speed of the glider
a passenger on the ferris wheel with a radius of 6.00m drops his keys when he is on the way up and at the 10 oclock
a hike walks 4.5km in one direction, then makes a 45 degree turn to the right and walks another 6.4km. What is the magnitude of her displacement
A 10 kg block of ice has a temperature of -13°C. The pressure is one atmosphere. The block absorbs 4.10*10 6 J of heat. What is the final temperature of the liquid water?
The horse on a carousel is 3.7m from the central axis. How fast is a child on the horse going
A 0.410kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 22.0N/m . The block rests on a frictionless surface. A 6.00×10^2kg wad of putty is thrown horizontally at block, hitting it with a s..
A curve of radius 30.0 m is banked so that a car traveling 40.0km/h can round it even if the road is so icy that the coefficient of static friction is approximately zero. Find the speed at which a car can travel around this curve withoutskidding o..
Compute direction of Sparkys net displacement
An object with a mass of 4.0 Kg travels with a constant velocity of 8.5m/s northward. How far will the object travel before coming to rest
Insects do not have lungs as we do, nor do they breathe through their mouths. Instead, they have a system of tiny tubes, called tracheae, find the oxygen concentration at the interior end of the tube
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