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Question: An electron at Earth's surface experiences a gravitational force meg.
Part A: How far away can a proton be and still produce the same force on the electron?
I need help to solve the above question and your answer should show why gravity is unimportant on the molecular scale!
An ice skater slides at a speed of 25 km/h on a level ice track. At this point she allows herself to coast to a complete stop
A microphone is attached to a spring that is suspended from the ceiling. Directly below on the floor is a stationary 440 Hz source of sound. The microphone oscillates up and down in simple harmonic motion with a period of 2.0s.
A 0.954 kg toy car is powered by four AA batteries (6.00 V total) connected directly to a small DC motor. What is the average current supplied to the car's motor
A series AC circuit contains a resistor, an inductor of 200 mH, a capacitor of 5.60 µF, and a source with ?Vmax = 240 V operating at 50.0 Hz. Calculate the inductive reactance
a. What star has the coolest surface temperature b. Which star has the hottest surface temperature c. What is the approximate range of radii of stars in the main sequence compared to the size of the sun
Coherent light that contains two wavelengths, 660nm and 470nm , What is the distance on the screen between the first-order bright fringe for each wavelength
This can lead to adverse decisions on product costing and pricing. To address this issue, some authors have suggested using the Activity Based Costing method." Do you agree with the above statement? Discuss and give relevant examples to support you..
Water flows through a Venturi meter with a pipe diameter of 9.0 cm and a constriction diameter of 5.6 cm. Find the flow rate of the water in the pipe of 9.0 cm diameter
A 78.0-kilogram child starts from rest from the top of a frictionless slide that is 5.4 meters tall. The bottom of the slide is 28.6 centimetres above the ground. The kinetic friction is a constant 116. 0newtons and acts over the 5.0 meter length of ..
A 7.5 nC charge is located 1.8m from a 4.2 nC charge. Find out the magnitude of the electrostatic force that one charge exerts on the other. Is the force attractive or repulsive.
For a satellite to be in a circular orbit 800km above the surface of the earth, what orbital speed must it be given, What is the period of the orbit
Two positive point charges, each 12\mu C , lie along the x-axis at x = -0.10m and x = +0.10m. Find the electric field at the point (0, 0.25m ) on the y-axis
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