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A 3.0-uC point charge is placed in an external uniform electric fieldof 1.6 x 104 N/C. At what distance from the charge is the net electric field zero?
Charge q1 = 6.01·10-8 C is placed at the origin. Charges q2 = -1.33·10-8 C and q3 = 1.75·10-8 C are placed at points (0.185 m,0 m) and (0 m,0.211 m), Determine the magnitude of the net electrostatic force on charge q3
A 581-{\rm N} physics student stands on a bathroom scale in an 821-{\rm kg} (including the student) elevator that is supported by a cable. Find the magnitude of the acceleration of the elevator
The Hamiltonian of a system of two (spin- 1/2) electrons, H= ?1?z1+?2?z2 where ?z is the Pauli Matrix, ? is an energy parameter and our subscripts represent the two electrons 1 and 2. What is the basis where this Hamiltonian is diagonal and what is t..
You are standing between two plane mirrors that are parallel to each other. How many total images of you would there be formed by this arrangement
An image of the moon is focused onto a screen using a converging lens of focal length f= 36.3 cm. The diameter of the moon is 3.48×106 m, What is the diameter of the moon's image
A weightlifter curls a 35kg bar, raising it each time a distance of 0.65m. How many times must he repeat this exercise to burn off the energy in one slice of pizza
An Argon laser emits light with a wavelength = 486nm. Calculate the frequency for the emitted light. Calculate the energy of photon in the beam
Find (a) the wavelength in the medium, (b) the optical path length, and (c) the phase difference after moving that distance, with respect to light travelling the same distance in a vacuum.
A hospital patient receives a quick 500-cc blood transfusion through a needle with a length of 5.0 cm and an inner diameter of 1.0 mm. if the blood bag is suspended 0.85 m above the height where the blood first starts to flow into the vein, how lo..
Find the magnitude of total displacement of the object
A given individual is unable to see objects clearly when they are beyond 100cm. what focal length lens should be used to correct this problem
A box of mass 12 kg moving on horizontal table. A wrench applies a constant force of 45.0 N that makes 37 degrees above the horizontal. what force do you need to apply to maintain that limit
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