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A 40-micro C charge is positioned on the x axis at x = 4.0 cm. Where should a 60-micro C charge be placed to produce a net electric field of zero at the origin?
Determine how much work must be done to stop a 49000 kilogram airplane landing at 250 km/h? Make sure you input the correct sign for work
An alpha particle, the nucleus of a helium atom, has a mass of 6.7*10-27 kg and a charge of 3.2*10-19C. It floats at rest above a charged horizontal sheet with uniform charge density on its surface.
A baseball is hit with a speed of 30 m/s at a 45 degree angle. It lands on the flat roof of a 13 m tall nearby building. what horizontal distance does it travel before it lands on the building
A srting acquires a tension due to mass of 3 kilograms at one end. The string has a linear mass density of 0.02 kg/m. What is the speed of the waves in the spring? Show all essential steps to solution.
A 0.500-kg glider, attached to the end of an ideal spring with force constant k=450 n/m, undergoes simple harmonic motion with an amplitude 0.040 m. Compute the maximum speed of the glider
How much force acts on one surface of a rectangular bedroom wall that is 2.20 m by 3.20 m when atmospheric pressure is 1.00x 10^5 N/m^2
We can model the eye as a sphere 2.50 in diameter with a thin lens in the front and the retina along the back surface. What is the range of the effective focal length of the lens of the eye for this person? fmin and fmax
Find the net electric field
The vibrational frequency of CO molecule is 6.42 x 1013 Hz. Estimate the amplitude of molecular vibrations.
A 15 kg block rests on a level frictionless surface and is attached by a light string to a 5.0 kg hanging mass where the string passes over a massless frictionless pulley, What is the tension connecting the string
The concept of thermionic emission is the basis of modern X-ray tubes, which are the workhorse of a medical X-ray image. How many electrons, ne, has the filament lost
A crate is hanging from a rope which is attached to a metal ring through which a second rope runs. What is the angle if the tension in rope 1 is 1.30 times the tension in rope 2
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