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A car starts from rest and travels for 5.0 s with a uniform acceleration of +2.3 m/s2. The driver then applies the brakes, causing a uniform acceleration of ?2.0 m/s2. If the brakes are applied for 1.0 s, determine each of the following.
(a) How fast is the car going at the end of the braking period?
m/s
(b) How far has the car gone?
m
On The Apollo 14 mission to the Moon, astronaut Alan shepard hit a golf ball with a 6 iron. For how much more time was the ball in flight
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If the principal quantum number n were limited to the range from 1 to 5, how many elements would we find in nature
As part of a safety investigation, two 1900 kg cars travelling at 19 m/s are crashed into different barriers. Determine the average forces exerted on (1) car that hits a line of water barrels and takes 1.7 s to stop, and (2) car that hits a concre..
The electron beam inside a television picture tube is 0.300mm in diameter and carries a current of 50.0 ?A. What is the current density in the electron beam
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q1. two thin wedding bands each with mass m and radius r are welded together so that each ring passes through the
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two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 448 N and F2 = 350 N. What is the resultant of these two forces
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A chemistry student with a mass of 75 kg is riding a steadily moving Ferris wheel. What is the magnitude of the normal force on her body
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