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A subway train starts from rest at a station and accelerates at a rate of 1.60 m/s squared for 14 seconds. It runs at a constant speed for 70 seconds and slows down at a rate of 3.50 m/s squared until it stops at the next station. Find the total distance covered.
An ideal gas has a pressure of 2.0 atm and temperature 27 degrees celcius. what is the volume of this gas
Two cars of 2000 %u2013kg each collide head-on while traveling at 75.0 miles per hour. What is the temperature increase of the cars
On the moon the surface temperature ranges from 397 K during the day to 92.0 K at night. What are these temperatures on the Fahrenheit scale
A square copper plate has a circular hole in its center. Each side of the plate is 23.52 cm, and the radius of the circular hole is 7.827 cm
The pilot of an airplane executes a loop-the-loop maneuver in a vertical circle. What is the pilot's apparent weight at the lowest point if his true weight is 160 lb
A 1.83 kg book is placed on a flat desk. Suppose the coefficient of static friction between the book and the desk is 0.542, How much force is needed to keep the book moving at constant speed once it begins moving
An electron is accelerated from rest through a potential difference of 3750 V. Calculate the radius of the path it will follow
Light inside an optical fiber tube hits the wall between the tube and air. What is the index of refraction of the tube
A uniform 1.3-kg rod that is 0.86 m long is suspended at rest from the ceiling by two springs, one at each end. Find the angle that the rod makes with the horizontal
A 150-kg (including all the contents) rocket has an engine that produces a constant vertical force (the thrust) of 1680 N, Find the acceleration of the rocket
On average, an electric water heater operates for 2.3 h each day. what is the cost of operating the heater
an object has a kinetic energy of 312 J and a momentum of magnitude 20.3 kg × m / s 1, find the speed of the object
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