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Points A and B have electric potentials of 231 Volt and 129 Volt correspondingly. When an electron is released from point A arrives at point C its Kinetic energy is KEa, When the electron from rest is released at point B, however it kinetic energy reaches point C is Kb= 4KEa. Determine what is the electric potential at C?
We wish to coat flat glass (n = 1.50) with atransparent material (n = 1.25) so that reflection oflight at wavelength 474 nm is eliminated by interference. What minimum thickness can the coating have to do this
The magnetic field of a cylindrical magnet that has a pole-face diameter of 3.3 cm can be varied sinusoidally between 29.6 T and 30.0 T at a frequency of 10 Hz. That is, as a function of time and in units of Tesla, such magnetic field is given by
A possible means for making an airplane invisible to radar is to coat the plane with an antireflective polymer. If radar waves have a wavelength of 2.80 cm and the index of refraction of the polymer is n = 1.30, how thick would you build the coating?
A hypodermic syringe is attached to a needle that has an internal radius of 0.303 mm and a length of 3.02 cm. What must the pressure of the fluid in the syringe be in order to inject the solution at a rate of 0.253 mL/s
an 830-kg race car can drive around an unbanked turn at a maximum speed of 58 ms without slipping. the turn has a
A 12.3 kilogram test rocket is fired vertically from Cape Canaveral. Calculate what additional height will the rocket rise
Given the mass of the rubber in the balloon is 1.40 g, what is the net vertical force on the balloon if it is let go, Calculate the buoyant force on a 2.00 L helium balloon.
A figure skater begins spinning counterclockwise at an angularspeed of 4.7 π rad/s. during a 4.9 s interval, she slowly pulsher arms inward and finally spins at 8.2 π rad/s. what is heraverage angular acceleration during this time interval?
If air resistance is negligible, using energy considerations alone, how fast must the ball be going after it falls 200 meters.
A projectile is launched with 200 kg m/s of momentum and 1000 J ofkinetic energy. What is the mass of the projectile
My neighbor opened the turner circuit of his radio and noticed that it uses a 4.5 ?H inductor together with a variable capacitor that ranges from 0.32 pF to 1.28 pF
three test charges each with a charge of 1x10-6 c are located at the points of an equilateral triangle. if the legs of
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