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Consult Concept Simulation 2.1 before starting this problem. The Kentucky Derby is held at the Churchill Downs track in Louisville, Kentucky. The track is one and one-quarter miles in length. One of the most famous horses to win this event was Secretariat. In 1973 he set a Derby record that has never been broken. His average acceleration during the last four quarter-miles of the race was +0.0105 m/s2. His velocity at the start of the final mile was about +16.58 m/s. The acceleration, although small, was very important to his victory. To assess its effect, determine the difference between the time he would have taken to run the final mile at a constant velocity of +16.58 m/s and the time he actually took. Although the track is oval in shape, assume it is straight for the purpose of this problem.
I need this to be in the correct significant figures and units as well.
A 210 g, 49 bcm diameter turntable rotates on frictionless bearings at 54 rpm . A 25 g block sits at the center of the turntable. A compressed spring shoots block radically outward along a frictionless groove in the surface of the turntable.
A man pushing a mop across a floor causes the map to undergo two displacements. Find the magnitude and direction of the second displacement
a doubly charged helium atom whose mass is 6.6 10- 27 kg is accelerated by a voltage of 2400 v.what will be its radius
A 2,493-kg car is moving down a road with a slope (grade) of 14% at a constant speed of 13 m/s. What is the direction and magnitude of the frictional force?
The potential difference among a pair of oppositely charged parallel plates is 367 V. If the spacing between the plates is tripled without altering the charge on the plates, what is the new potential dissimilarity between the plates?
A 1 pF capacitor is connected in parallel with a 2 pF capacitor, the parallel combination then being connected in series with a 3 pF capacitor. Which capacitor has the greatest charge
A pendulum consists of a 3 kilogram bob at the end of a 2 meter long light string, suspending the bob from a pivot. Determine the net torque on the bob about the pivot
When a light bulb is connected across the terminals of abattery, the battery delivers 20.0 W of power to the bulb. Avoltage of 11.6 V exists between the terminals of the battery,which has an internal resistance of 0.500. What is the emf of the batter..
An inductor in the form of a solenoid contains 460 turns and is 12.2 centimeter in length. Determine what is the radius of the solenoid
The morning sounding shows an is othermal layer from 800 to 700 mbat -11oC, and the temperature in the layer from 390 to250 mb decreases steadily from -47 to -55oC. What is the thickness of these layers?
The speed of the vaccine (p=1100 kg/m3) is held in a reservoirwhere a high pressure pushes it out. Find the speed at which the vaccine emerges
A plank 2.00 cm thick and 15.7 cm wide is firmly attached to the railing of a ship by clamps so that the rest of the board extends 2.00 m horizontally over the sea below. find the shear modulus of the wood
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