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Suppose you form a dipole from two point charges (with a magnitude of charge, q). the postive charge is located at the point x=y=0, z=d/2. and the negative charge is located at x=y=0, z=-d/2. determine the magnitude of the electric field along the line y=z=0 (this is the x-axis).
Assuming that a light bulb acts as a point source emitting the light isotropically at 100W. What is the root-mean-square value of the electric field at distance d=20m from the bulb
A 150 g ball and a 220 g ball are connected by a 36{rm cm}-long, mass less, rigid rod. The balls rotate about their center of mass at 130 rpm. What is the speed of the 150 g ball.
Three moles of an ideal monatomic gas are at a temperature of 345 K. What is the change in the internal energy of the gas
If an electric wire is allowed to produce a magnetic field no larger than that of the Earth .45E-4 T at a distance of 27 cm
A person with mass mp = 72 kg stands on a spinning platform disk with a radius of R = 1.74 m and mass md = 195 kg. find the centripetal acceleration of the person
A 50 m3 insulated chamber containing air at 40oC, 100 kPa, R.H. 20%, is connected to another 50 m3 insulated chamber containing air at 20oC, 100 kPa, R.H. 100%. The valve is opened and the system is allowed to reach thermal equilibrium. Determine the..
You are testing a new amusement park roller coaster with an empty car with mass 123 kg. One part of the track is a vertical loop with radius 11.1 m, how much work is done by the friction
An automobile tire has a volume of 0.0185 m3. If the pressure in the tire is 500 kPa and the temperature is 298 K, how many molecules are there inside the tire
A microscope uses an eyepiece with a focal length of 1.65 cm . Using a normal eye with a final image at infinity, What is the magnification of the microscope
An aluminum rod is 22.0 cm long at 20°C and has a mass of 350 g. If 14,000 J of energy is added to the rod by heat, what is the change in length of the rod
Two concentric conducting spheres of radii a = 5 cm and b = 10 cm have a potential difference V = 100 V between them. What is the charge carried by each sphere
A nonconducting solid sphere of radius 10.1 cm has a uniform volume charge density. What is the sphere's volume charge density
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