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Describe the following problem in detail-
Problem 1- What is the velocity of a beam of electrons that goes undeflected when moving perpendicular to an electric and magnetic fields, E and B are also perpendicular to each other and have magnitudes 7500V/m and8.9×10?3T , respectively.
Problem 2- What is the radius of the electron orbit if the electric field is turned off?
I need explain in brief of the above problem.
A 60 μm strand of DNA is strretched by an optical trapfrom equilibrium untill its ends are seperated by an additional 25μm. What is the work done by the trap on the DNA strand
A 80 kg man is ice-skating due north with a velocity of 6.0 m/s when he collides with a 35 kg child. What is the direction of the child's velocity just before the collision
Two metal spheres of different sizes are charged such that the electric potential is the same at the surface of each. Sphere A has a radius 7 times that of sphere B. Let and be the charges on the two spheres, and let and be the electric-field magnitu..
A factory employee pushes a 35 kilogram crate across the floor by applying a 600 N push at a 30o angle above the horizontal. Compute how much work does the friction do on the crate
explain the changes in acceleration velocity and net acceleration of a man jumping off a plane in a parachute. describe
if the boy is traveling at 1m/s relative to the ground, explain how fast does the boy appear to be moving relative to the woman?
A parallel-plate air capacitor has a capacitance of 300 {\rm pF} and a charge of magnitude 0.250 \mu {\rm C} on each plate. The plates are 0.500 {\rm mm} apart. What is the surface charge density on each plate
A basketball leaves a player's hands at a height of 2.20m above the floor. What is the range of initial speeds allowed to make the basket
a photocell that detects the amount of light transmitted through the finger at each wavelength. Identify the frequency of each of these light sources. If 66% of the energy of the red source is absorbed in the blood, by what factor does the amplitu..
The rotational speed of an auto mobile engine is increased at a constant rate from 1400 rev/min to 3100 rev/min in 16 s. Find its rotational acceleration in revolutions per minute-squared
a person fasts for 40 days. during this time they lose 17 kg of body mass - 13 kg of fat and 4 kg of protein and
A 3-point jump shot is released 2.2 m above the ground, 6.02 m from the basket, which is 3.05 m high. For launch angles of 30° and 60°, discover the speed required to make the basket?
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