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Presume a diode consists of a cylindrical cathode with a radius of 6.200×10 -2cm, mounted coaxially within a cylindrical anode with a radius of 0.5580 cm. The potential dissimilarity between the cathode and anode is 360V. An electron leaves the surface of the cathode with zero initial speed (vinitial=0). Discover its speed v final when it strikes the anode.
A blackened roof measures 20 m by 50 m. If the temperature of the sun's surface is 6000K, Stefan's constant (σ) is 5.7 x 10-8 Wm-2K-4, Determine how much solar energy is incident on the roof per minute
Two capacitors have the same plate separation, but one has square plates and the other has circular plates, at is the dielectric constant kcircular of the material between the circular plate
A 67 kg person sits on a 3.5kg chair. Each leg of the chair makes contact with the floor in a circle that is 1.8 cm in diam. Determine the pressure exerted on the floor by each leg of the chair; Assume the weight is evenly distributed.
While driving along a country lane with a constant speed of 12 m/s, you encounter a bump in the road that has a cross section. find the normal force on a 67 kg person in your car as you pass over the top of the bump
A 0.5 kg block of ice is sliding by you on a very slippery floor at 2.5m/s. As it goes by, you give it a kick perpendicular to its path. Your foot is in contact with ice block for 0.0025 seconds.
How to find dielectric constant of paper , teflon ,rubber , silicon and concrete or any other 5 mediums and compare their values with standared values
An aircraft weighing 991 N is accelerated at 11 m/s2 for 13 seconds, at which time the aircraft launches. How much work was done on the aircraft
a steel ball is dropped from a buildings roof and passes a window taking 0.115 s to fall from the top to the bottom of
Four identical masses of 2.7 kg each are located at the corners of a square with 1.5 m sides. What is the net force on any one of the masses
A 32cm string being held at a tension of 64.5N has a fundamental frequency of 440Hz. What are the second and third harmonics of the string
a typical cost for electric power is 12.0 per kilowatt-hour. a some people leave their porch light on all the time.
You push with a 20N horizontal force on a 2 kg mass resting on the horizontal surface against a horizontal friction force of 12N. What is the acceleration.
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