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The two protons in a helium nucleus are separated by a distance of approximately 1.1 x 10-15 meter, find how much electrical repulsive force is there between these protons?
Two point particles of charge Q1 = 46 µC and Q2 = 81 µC are found to have a potential energy of 43 J. What is the distance between the charges
A spring oscillator is designed with a mass of 0.258 kg. It operates while immersed in a damping fluid, selected so that the oscillation amplitude will decrease to 1.00% of its initial value in 8.34 s
A hot air balloonist rises vertically with a constant velocity of 6.0 m/s and releases a sandbag at the precise instant when the balloon is 40.0 m above the ground. what is the time when the sandbag hits the ground
What should the charge (sign and magnitude) of a particle of mass 1.47 be for it to remain stationary when placed in a downward-directed electric field of magnitude 610.
An explorer is caught in a whiteout (in which the snowfall is thus thick that the ground cannot be distinguished from the sky) while returning to base camp. Find how far must he now travel to reach base camp
A railroad freight car weighing 42 tons and traveling 10 m/s overtakes another freight car weighing 20 tons and traveling at 4.5 m/s in the same direction as the first. a. Find the speed and kinetic energy of the cars if they collide and couple toget..
A block with mass of 4 kilogram is compressed a distance d against a spring with a spring contrast of 250 N/m. Calculate by what amount was the spring initially compressed
The owner of a van installs a rear-window lens that has a focal length of -0.330 m. When the owner looks out during the lens at an object located directly behind the van, the object appears to be0.250 m from the back of the van, and appears to be 0.3..
For a damped oscillator with a mass of 240 g, a spring constant 59 N/m and a damping coefficient of 75.00 g/s, what is the ratio of the amplitude of the damped oscillations to the initial amplitude at the end of 12 cycles.
A 2 kg book rests on a frictionless, horizontal surface. Acord attatched to the book passes over a pulley whose diameter is.150m, find The moment of inertia of the pulley about its rotation axis
Initially unpolarized light is sent into a system of three polarizing sheets whose polarizing directions make angles of ?1 = ?2 = ?3 = 50 deg with the direction of the y-axis
A steel section of the Alaskan pipeline had a length of 63.8 mand a temperature of 21.8 °C when it was installed. What is itschange in length when the temperature drops to a frigid -46.6°C?
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