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Question: Two small spheres spaced 20.0 cm apart have equal charge. How many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is 3.33Ã-10âˆ'21 N? The response must be typed, single spaced, must be in times new roman font (size 12) and must follow the APA format.
You notice a very one-dimensional-thinking snail crawling along one rail of a railroad track. What is the snail\'s displacement ?x in centimeters
Two NIST sites have given the wavelengths of red light from a He-Ne laser to be 632.99139822 nanometer in vacuum and 632.81646 nanometer in air. Obtain the index of refraction of the air in this case
The intensity of the sunlight that reaches Earth's upper atmosphere is approximately 1450 W/m2. Find the rms value of the magnetic field.
An 870-kg race car can drive around an unbanked turn at a maximum speed of 45 m/s without slipping. The turn has a radius of 170 m. What is the coefficient of static friction between the track and the car's tires
How various people can the raft hold before they start getting their feet wet, assuming the average person has a mass of 64? Do not avoid the weight of the logs. Assume the specific gravity of wood is 0.70.
Many people mistakenly believe that the astronauts that orbit Earth are "above gravity." Calculate g for space shuttle territory 150 km above Earth's surface. suppose Earth's mass is 6.0 1024 kg, and its radius is 6.38 106 m (6380 km). Your answer..
A train moves due north at a rate of 9.6933 m/s relative to the ground. what is the magnitude of the ball's speed as measured by an observer on the ground
A certain fluid has a density of 1090 kg/m3 and is observed to rise to a height of 2.3 cm in a 1.0-mm-diameter tube. Calculate the surface tension of the fluid
A particle is pulled to the right with a force of 89.3 Newton, to the left with a force of 123.3N, upward with a force of 643.9 Newton, and downward with a force of 239.5 N. Find the magnitude of the net external force on particle
Why are rainbows so frequently seen during summer but so seldom are they seen during winter?
Show that the net force on each electron is toward the nucleus and has magnitude The energy needed to remove both electrons is just the negative of the energy you found in part.
A fisherman in a stream 36 cm deep looks downward into the water and sees a rock on the stream bed. How deep does the stream appear to the fisherman
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