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The electron and proton of a hydrogen atom are separated (on the average) by a distance of approximately 5.3 x 10-11 m. Find the magnitudes of the electric force and the gravitational force between the two particles. Other than the magnitude of the forces between elementary particles, what is a fundamental difference between the two forces?
A 52dB sound wave strikes an eardrum whose area is 5.0×10?5m^2 . a)How much energy is received by the eardrum per second? b)At this rate, how long would it take your eardrum to receive a total energy of 7.0J?
It is said that Galileo discovered a basic principle of the pendulum - that period is independent of the amplitude - by using his pulse to time the period of swinging lamps in the cathedral as they swayed in the breeze. assume that one oscillation..
A force of 13.3 N pulls horizontally on a 0.9 kg block that slides on a rough, horizontal surface, What is the acceleration of the blocks and What is the tension in the string
What is the (a) magnitude and (b) angle (measured relative to the positive direction of the x axis) of the asteroid's acceleration.
A box of mass 5.8 kg is accelerated from rest by the force across a floor at a rate of 2.0 m/s2 for 8.2 s. Find the net work done on the box.
Question: Field and force with three charges? What is the electric field at the location of Q1, due to Q 2 ?
You have a wire of length L = 2.1 m for making a square coil of a dc motor, Find the maximum torque exerted on the coil when the wire is used to make a single-turn square coil
An airplane is flying with a velocity of 93at an angle of 25 above the horizontal. When the plane is a distance 103 directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment.
Copper wire has a breaking stress of about 3×10^8 N/m2. What is the highest load that can be hung from a copper wire of diameter 0.420 mm.
What is the kinetic energy of a 1,500 kg car with velocity of 72.0 km/hr? How much work must be done on the car to bring it to a complete stop.
What is t he steam-side coefficient
The plates of a parallel-plate capacitor in vacuum are 25 micrometer apart and 88 square cm in area, Calculate the charge on each plate, the capacitance and the energy density
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