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Contact forces: types of forces that result when the two interacting objects are apparent to be physically linking each other.
Ex: frictional forces, tensional forces, normal forces, air resistant forces, applied forces.
when do we use projected area instead of actual area and why
a dock worker loading crates on a ship finds that a 24kg crate, intially at rest requires a 65N horizontal force to set it in motion.However,after the crate is in motion, a horizon
In the figure below the closed surfaces A and B appear as closed curves. Find the flux through closed surface B.
A swimmer swims across a 20-meter-wide river at 0.3 m/s. The river is running at 0.1 m/s. What is resultant velocity of the swimmer, and at what angle with respect to his original
A guitar string produces 4 beats/second when sounded with a250Hz tuning fork and 9 beats/second when sounded with a 255 Hz tuning fork. What is the vibration frequency?
if a big person and a small person run up the stairs in the same time, which of them develops the most power
What do you mean by understand by the statement ‘charge is quantized'? The electric lines of force do not intersect. Why?
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