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The electron and proton in a hydrogen atom are 52.9 pm apart. What is the magnitude of the electric force between them
A 26.3 g mass is moving in the +x-direction at 48.8 cm/s while a 25.7 g mass is moving in the -x-direction at 62.8 cm/s. Find their velocity (in cm/s) after the collision
A hot air balloon plus cargo has a mass of 291 kg and a volume of 755 m3. The balloon is floating at a constant height of 6.25 m above the ground. The density of the outside air may be assumed to be 1.29 kg/m3. What is the density of the hot air in t..
What is the total flux? That now passes through the cylindrical surface? Enter a positive number if the net flux leaves the cylinder and a negative number if the net flux enters the cylinder.
Briefly describe the properties of our planet and explain them. Include the qualities of the Earth's interior and how we learn about it, as well as a description of properties that shape and change the Earth's surface (e.g. volcanism, tectonics, a..
Two tugboats pull a disabled supertanker. Each tug exerts aconstant force of 1.7×106 N, one at an angle 18.0^\circ west of north, What is the total work done by the twotugboats on the supertanker
A teaspoon of an organic oil dropped on the surface of a quiet pond speads out to cover almost an acre. The oil film has a thickness equal to the size of a molecule. In the lab, when you drop 0.001 milliliter (10-9m3) of the organic oil on the still ..
The maximum electric field 9.4 m from a point light source is2.5 V/m. What are (a) the maximum value of the magnetic field and (b) the average intensity of the light there? (c) What is the power of the source?
q1. a person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by
An electron is to be accelerated from a velocity of 1.00×106m/s to a velocity of 7.00×106 m/s. Through what potential difference must the electron pass
A 0.54-kg particle has a speed of 2.0 m/s at point A and kinetic energy of 7.5 J at point B. What is its speed at point b
A 4 µF capacitor is charged to a potential di?erence of 14 V. What is the capacitance of the second capacitor
A 20.0cm long organ pipe is filled with air and is open at one end and closed at the other. What is the frequency of the third mode
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