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Question
A charged particle in an electric field "E" is acted upon by a force F = q *E, where "q" is the magnitude of the particle's electric charge. Consider the situation where an electron (electric charge -e ≈ -1.602 · 10^-19 C, mass m_e ≈ 9.109 · 10^-31 kg) enters the electric field from the direction of the negative x-axis at the time t = 0 at the point x = 0 with an initial velocity v0 = (100 m/s)ˆi. The electric field is greater than zero only in the range x > 0. Forces other than those caused by the electric field can be ignored.
How far from the entry point does the electron re-emerge from the electric field if the electric field depends on time as follows:
Two kilograms of water at 19 degrees C is heated to 21 degrees C. What was the entropy change for the system
Two identical charges, each -8.00 E-5 C, are separated by a distance of 20.0cm (100cm=1m). What is the force of repulsion? Coulomb's constant is 9.00 E9 N*m^2/c
A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 2.04 x 105 N. What is the work done on the jet by the catapult
A 500-kg elevator is pulled upward with a constant force of 5500 N for a distance of 50.0 m. What is the net work done on the elevator
An aluminum wire has a cross-sectional area of 2.70x 10^-6 m^2 and carries a current of 7.50 A. The mass density of aluminum is 2.70 g/cm^3. find the average speed of the electons in the wire.
Prove that classically, fusion in the sun will never work. The core temperature of the Sun is 1.5 million degrees K. The charge on the electron, the Coulumb Constant and the Boltzmann's Constant are:
The first stage of a space vehicle consumed fuel and oxidizer at the rate of 1.85 x 104 kg/s, with an exhaust speed of 3.10 x 103 m/s. Evaluate the thrust produced by these engines
How would you solve problem 52 from chapter 25 from the book fundamentals of physics if the battery remained connected.
a parallel-plate air capacitor has a capacitance of 500pf and a charge of magnitude 0.250uc on each plate. the plates
A mixture of ozone and oxygen contaning 20% by volume of ozonediffused through a porous plug in 172seconds, Calculate the molecular weight of ozone
A child is playing by jumping on a bathroom scale. The mass of the child is 31 kg and when he stands on a bathroom scale, the spring inside the scale compresses 0.46 mm. what is the maximum height the child can jump on the scale
A nitrogen molecule is initially in a large volume of calm air at STP. How many collisions does the nitrogen molecule suffer in 10 minutes
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