Additional capacitor do you need to produce a capacitance
You need a capacitance of 40 µF but you don't happen to have a 40 µF capacitor. You do have a 56 µF capacitor. What additional capacitor do you need to produce a total capacitance of 40 µF?
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A 0.39-kg object connected to a light spring with a force constant of 20.2 N/m oscillates on a frictionless horizontal surface. The spring is compressed 4.0 cm and released from rest. (a) Determine the maximum speed of the object.
Hence calculate (i) the efficiency and power output of the engine, (ii) the power in the cooling water and (iii) the overall efficiency of the system.
A proton is sent into a region of constant magnetic field, oriented perpendicular to the proton's path. There the proton travels at a speed of 2*10^6 m/s in a circular path of radius 20cm. A) What is the magnitude of the magnetic field? B) What is
Two lenses with focal lengths f1=5cm and f2=10cm are located 5cm apart. If an object 2.50 high is located 15.0 cm in front of the first lens, find the position and size of the final image.
Find the frequency of revolution of the electron in the classical model of the hydrogen atom. In what region of the spectrum are electromagnetic waves of this frequency?
An electron is located on the x axis at x0 = -9.89 × 10-6 m. Find the magnitude and direction of the electric field at x = 3.45 × 10-6 m on the x axis due to this electron. Magnitude: What is the direction of the electric field?
The electric field strength is 2.00×104 inside a parallel-plate capacitor with a 0.500 spacing. An electron is released from rest at the negative plate. What is the electron's speed when it reaches the positive plate?
If this ice were to fall into the sea due to melting because of global warming, estimate the resulting sea level rise if the oceans cover 71% of the surface of the ocean. Assume the radius of the Earth is 6353 km.
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 13.0 cm, giving it a charge of -19.7 µC. a(a) Find the magnitude of the electric field just inside the paint layer
You live on a busy street, but as a music lover, you want to reduce the traffic noise. If you install special sound-reflecting windows that reduce the sound intensity level by 29.0dB, by what factor have you reduced the sound intensity?
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