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A surface completely surrounds a 4.5 × 10-6 C charge. Find the electric flux through this surface when the surface is (a) a sphere with a radius of 0.66 m, (b) a sphere with a radius of 0.30 m, and (c) a cube with edges that are 0.65 m long.
How far will it coast before starting to roll back down. In addition, snow exerts a retarding force on the sled that points opposite to the direction of motion, and has a magnitude of 57 N. Find the acceleration of the sled and child.
What is the friction force that acts on the firefighter. find Max wavelength and Min wavelength.
when released from rest from this spot, the particle arrives at B with twice the speed it previously had, or 2vB. Find out the potential at B.
A spring with 49 N/m hangs vertically next to a ruler. The end of the spring is next to the 17-{rm cm} mark on the ruler. If a 2.0-{rm kg} mass is now attached to the end of spring, where will the end of the spring line up with the ruler marks.
Find out the minimum sound intensity
A box slides down a 36° ramp with an acceleration of 1.26 m/s2. find the coefficient of kinetic friction between the box and the ramp.
Suppose an ideal gas is in a container 3L in volume and allowed to expand by having a piston move. The final volume after the piston moves is 15L. If the gas is at first at a pressure of 1×10^5 Pa and a temperature of 300 K, and temperature is mai..
A cylinder of gas at room temperature (20°C) has a pressure p1. To what temperature in degrees Celsius would the temperature have to be increased for pressure to be 2.7p1.
An airplane is flying through a thundercloud at a height of 2400 m. (Flying at this height is very dangerous because of updrafts, turbulence, and the possibility of electric discharge.)
If a third charge, of 5, is now placed at the point = 3.00, = 4.00 find the components of the total force exerted on this charge by other two charges.
A 400 g lemming (does anyone remember that old computer game?) waddles horizontally off a small 4.90 m high cliff with a speed of 0.5 ms-1.How far from the base of the cliff will the lemming land? What will be the lemmings speed upon landing.
express what would be the frequency of vibrations.
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