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In the Bohr model, as it is known today, the electron is imagined to move in a circular orbit about a stationary proton. The force responsible for the electron's circular motion is the electric force of attraction between the electron and the proton
If the speed of the electron were 1.1×106m/s , what would be the corresponding orbital radius?
A single current carrying loop has a magnetic dipole moment of 10i - 20j + 15k Am2 and is in a region of space, Find the potential energy of the loop
Find out the magnitude and direction of the electric field at a distance.
A uniform disk of mass 4m is rotating an a plane parallel to the ground with angular frequency of 12 rad/sec. What fraction of kinetic energy was lost
A irregular piece of metal has a dry mass of 5.7 kg. Once it is submerged it has an apparent mass of 2.4 kg. What is the density of the piece of metal
A parallel-plate capacitor has circular plates of 10.4 cm radius and 1.67 mm separation. Calculate the capacitance in picofarads
q1. a rock is projected from the edge of the top of a building with an initial velocity of 14 ms at an angle of 36
A capillary tube with a closed end is place into water.
A person who weighs 620 N stands at x = 5m, right on the end of a long horizontal diving board that weighs 350 N. The diving board is held up by two supports, one at its left end at x = 0, and one at the point x = 2.00 m.
What is the minimum soap-film thickness (n = 1.33) in air that will produce constructive interference in reflection for red (? = 644nm ) light
You are pushing a 150-kg wooden crate in a straight line a distance of 4.5 m across a wooden floor at constant speed. What is the work done by friction on the crate
then collides with a spring whose spring constant is 250 N/m. angle is 30 degrees. Illustrate what is the maximum compression of the spring?
An unhappy rodent of mass 0.289kg , moving on the end of a spring with force constant 2.52N/m , is acted on by a damping force Fx=?b?vx. If the constant b has the value 0.894kg/s , what is the frequency of oscillation of the mouse
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