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A line charge with a variable linear charge density lambda(x) = cx stretches along the x-axis from x=0 to x=L. The total charge is Q.
a) Calculate the constant c in terms of L and Q.
b) Calculate the electric field vector at r→=0.
the intensity at a distance of 6 m from a source that is radiating equally in all directions is 6.0 x 10-10 wm2. what
From the point (3000,4000,0) the next destination is at the point (-2000,16000,0) a force of 2 N is applied in the direction of π radians. An appropriate force is applied in the direction of π/2 radians so that the resultant vector is in the direc..
One end of a cord is fixed and a small 0.390-kg object is attached to the other end, obtain the tangential and radial components of acceleration
A rocket-driven car of total mass M loses mass at a constant rate λ per unit of time at a constant ejection speed V relative to the car. If the total resistance to motion is kv with the speed is v, show that the acceleration of the car along a str..
A damped oscillator is described by the equation m [(x)\ddot] = -b [(x)\dot] - kx . What is the condition for critical damping? Assume this condition is satisfied.
Consider a hydrogen atom in a magnetic field. Sketch the possible transitions among the n = 3, l = 2 and n = 2 and l = 1 levels. Which lines will not appear if we need that Δm = 1,0, and -1 only? How many spectral lines with dissimilar frequencies wi..
a proton moving with a velocity of 4.0times104 ms enters a magnetic field of 0.20 t. if the angle between the velocity
A 500-Hz sound travels through pure oxygen. Y=The wavelengthof the sound is measured to be 0.65 m. What is the speed of sound in oxygen
The siren on an ambulance is emitting a sound whose frequency is 2650 Hz. The speed of sound is 343 m/s. find the wavelength and frequency of the sound you hear
Julie drives 100 mi to Grandmother's house. On the way to Grandmother's, Julie drives half the distance at 44.0mph and half the distance at 65.0. What is her average speed on the return trip
You are operating a water pump at the base of a 18 m building. The water at the base is 3.8 atm and moving at 0.6 meters per second. What is the velocity and the pressure of the fluid at the top of the building
The weight of a star is usually balanced by two forces: the gravitational force, acting inward, and the force created by nuclear reaction, acting outward. What is the radius of the geostationary orbit for this neutron star
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