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A parallel-plate capacitor is constructed with circular plates of radius 6.5×10?2 m . The plates are separated by 0.21 mm, and the space between the plates is filled with a dielectric with dielectric constant, k . When the charge on the capacitor is 1.4 microcoulombs the potential difference between the plates is 770 V. find the value of the dielectric constant?
A chemist must dilute of M aqueous silver nitrate solution until the concentration falls to M . He'll do this by adding distilled water to the solution until it reaches a certain final volume
A transformer is to be used to provide power for a computer disk drive that needs 5.8 V (rms) instead of the 120 V (rms) from the wall outlet. determine the current in the primary
An ocean liner leaves New York City and travels 37.0° north of east for 171 km. How far east and how far north has it disappeared? In other words, what are the magnitudes of the components of the ship's displacement vector in the directions.
How much energy is necessary to bring the system back
A 2.0 cm tall object is placed 5.0 cm in front of a +12 diopter lens. What is the linear magnification
A 1408.0 g mass is on a horizontal surface with ?k = 0.39, and is in contact with a massless spring with a force constant of 526.0 N/m which is compressed. Calculate the distance the spring was compressed
A car with a mass of 980 kg is initially traveling east toward an intersection with a speed of vc = 20.8 m/s, Determine the initial speed of the truck and the final speed of the wreckage
A 4.00 kg model rocket is launched, expelling 46 g of burned fuel from its exhaust at a speed of 590m/s. What is the velocity of rocket after the fuel has burned? Hint: overlook the external forces of gravity and air resistance.
The average kinetic energy per molecule of an ideal gas with originally Ni=1000 molecules is Kavg=500J. What is the final number of molecules Nf after this process
One of the harmonic frequencies of tube A with two open ends is 1020 Hz. The next-highest harmonic frequency is 1088 Hz. What is the number of this next-highest harmonic
Find out how fast a GPS satellite is moving relative to someone on the ground and from that how much slower time runs where it is in orbit relative to someone on the ground.
What mass (in grams) of steam at 100°C must be mixed with 251 g of ice at its melting point, in a thermally insulated container, to create liquid water at 66.0°C? The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg, an..
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