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A conducting solid sphere of radius 20.0 cm is located with its center at the origin of our three-dimensional coordinate system. A charge of 0.429 nC is applied to the sphere.
a) What is the magnitude of the electric field at point (x,y,z) = (23.9 cm, -0.9 cm, 0 cm)?
b) What is angle of this electric field with respect to the x-axis at this point? (Please give your answer in degrees!)
c) What is the magnitude of the electric field at point (x,y,z) = (2.1 cm, -0.9 cm, 0 cm)?
A railroad car of mass2.52multiplied by104kg is moving with a speed of3.95m/s. It collides and couples with three other coupled railroad cars, What is the speed of the four cars after the collision
Ultraviolet light of wavelength 280 nm is used in an experiment on photoelectric effect with lithium (c = 2.5 eV) cathode. Find the maximum kinetic energy of the photoelectrons and (b) the stopping potential.
A 5N force is applied to a wheel with a rotational inertia of 0.080 kg m2 that has a radius of 5 cm, What angular aceleration did it cause
A 58 kW radio station broadcasts its signal uniformly in all directions. What is the average intensity of its signal at a distance of 290 m from the antenna
A marble is rolled down a ramp with a height of .15 m. The marble travels a distance of 1.38 m. What is the velocity of the marble
Thermistor calibration problem. Suppose you calibrate a thermistorby inserting it first in ice water, then in boiling water. In icewater, the thermistor reads -32 mV and in boiling water it reads205 mV.
An X-ray photon with a wavelength of 0.260 nm scatters from a free electron at rest. Find the final momentum of the photon
Five thousand joules of heat is put into a Carnot engine whose hot and cold reservoirs have temperatures of 600 and 200 K, respectively. How much heat is convertedd into work?
q. a pump submerged at the bottom of a well that is 35m deep is used to pump water uphill to a house that is 50m above
a 5.82-kg object passes through the origin at time t 0 such that its x component of velocity is 5.30 ms and its y
Mass m ? 20kg is released from rest from the top of a frictionless ramp of height h = 1.8 m and length d = 2.4 m. How much work does the spring do on the mass during the compression
A bungee jumper with mass 52.0 kg reaches a speed of 13.5 m/s moving straight down when the elastic cord tied to her feet starts pulling her back up. find the average force that the bungee cord exerts on the jumper
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