A helical spring is extended by a force which increase uniformally from 0 to 600 newtons. The corresponding extension of the spring is 200mm. What is the total work done?
In a rectangular coordinate system, a most of 2×10^-9 kg is a placed at the origin of the coordinates and a most of 25×10^-9 kg is at the point of x=6m and y=0m.
What is the gravitational field at 1.x=3m,y=0m 2.x=3m,y=4m
If global warming raises 1 degree how much would the world expand, and how far would the tectonic plates separate causing more earthquakes. Seems 2 percent would be even worse.
An object with an initial velocity of 4 m/s moves along a straight axis under constant acceleration. 3 seconds later, its velocity is 14m/s. How far did it travel during this period
an electron is sitting 10 cm away from a small object of charge -5nc it is let go and move away from the charge object when it reaches a distance of 15 cm away. find its speed
Water is forced out of a fire extinguisher by air pressure, as shown in Figure. How much gauge air pressure in the tank (above atmospheric) is required for the water jet to have a speed of 30.0 m/s when the water level in the tank is 0.500 m below the nozzle?
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