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Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 3.6 m/s2 for 4.3 seconds. It then continues at a constant speed for 7.4 seconds, before applying the brakes such that the car's speed decreases uniformly coming to rest 185.78 meters from where it started. The yellow car accelerates uniformly for the entire distance, finally catching the blue car just as the blue car comes to a stop.
1) What is the total time the blue car is moving?
2) What is the acceleration of the yellow car?
A block with mass m = 5.00kg slides down a surface inclined 36.9 ? to the horizontal (the figure (Figure 1) ). The coefficient of kinetic friction is 0.27. What is the acceleration of the block down the plane
Petrus takes a cold glass of cola from fridge. He puts 3 cubes of ice into it. He laeves the glass on a table in a warm room for 5 minutes. He notices that the ice cubes have become smaller. The outside of the glass is now wet. What is the reason ..
A plane leaves the airport in Galisto and flies 159km 68 degrees east of north and after that changes direction to fly 242km at 48 degrees south of east, after which it makes an immediate emergency landing in a pasture.
parachutist with a camera, both descending at a speed of 13 m/s, releases that camera at an altitude of 110-m.
Kim has a metal casting company which makes commemorative coins. She has 0.12 cubic meters of silver which she needs to make into 1.07E5 coins of thickness 2 mm. If she uses all of the silver, what is the diameter in centimeters of each coin.
A river steamboat travels 36 miles downstream in the same time that it travels 24 miles upstream. What is the currents speed
After a day of testing race cars, you decide to take your own 1420 kg car onto the test track. While moving down the track at 10 m/s, you regularly accelerate to 32m/s in 10 s. What is the average net force that you have applied to car during the ..
Heat flows into an ideal gas at a constant volume. The pressure increases from 1.5 atm to 5.5 atm. What is the total heat flow of the process
When operated on a household 110.0-V line, typical hair dryers draw about 1550 W of power, What is the current in the dryer and What is the resistance of the dryer
A potter's wheel is rotating around a vertical axis through its center at a frequency of 1.5rev/s. find the frequency of the wheel after the clay sticks to it
Two cars are traveling along a straight line in the same direction, the lead car at 25.2m/s and the other car at 31.0m/s. At the moment the cars are 41.9m apart, the lead driver applies the brakes, causing her car to have an acceleration of -2.07m..
An open container holds ice of mass 0.530 kg at a temperature of -15.7 Celsius . The mass of the container can be ignored. Heat is supplied to the container at the constant rate of 810J/minute .
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