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An air-filled parallel-plate capacitor has plates of area 2.20 cm2 separated by 2.00 mm. The capacitor is connected to a 15.0 V battery.
(a) Find the value of its capacitance. (pF)
(b) What is the charge on the capacitor? (pC)
(c) What is the magnitude of the uniform electric field between the plates? (N/C)
A spring has k = 96 Nm. use a graph to determine the work needed to stretch it from x=3.8 cm to x=6.1cm, where x is the displacement from its unstretched length.
Protons in cosmic rays have been observed with kinetic energies as large 2.70 × 108 eV. How fast are these protons moving
football player kicks a ball with a speed of 22.1 m/s at an angle of 46° above the horizontal from a distance of 38 m from the goal line. What is the vertical velocity of the ball at the time it reaches the goalpost
A 9.0 x 10 -2 ice cube at 0.0C is dropped into a Styrofoam cup holding 0.35 kg of water at 12C, Find the amount of ice remaining
On illustrate what form does an S corporation report its income to the IRS? When is the tax return due? Illustrate what information does the S corporation provide to shareholders to allow them to complete their tax returns?
A potential difference of 1.50 V will be applied to a 40.0 m length of 18-gauge copper wire (diameter 0.04 in.), find the rate at which thermal energy will appear in the wire
What is the tangential velocity of a satellite in a circular orbit 300km above the surface of the Earth, How long does the satellite take to complete one orbit
A 45 dB sound wave strikes an eardrum whose area is 4.1 × 10-5 m2. How much energy is received by the eardrum per second
A 3.00-m length of wire is held in an east-west direction and moves horizontally to the north with a speed of 0.440 m/s. Calculate the magnitude of the induced emf between the ends of the wire. (in µV)
In one of the original Doppler experiments a tuba was played on a moving flat train car at a frequency of 75 hz, What beat frequency was heard if the train car approached the station at a soeed of 10m/s
A 5.6 cm -thick layer of oil (n =1.46) is sandwiched between a 1.5 cm -thick sheet of glass and a 2.0 cm -thick sheet of polystyrene plastic (n = 1.59.) How long (in ns) does it take light incident perpendicular to the glass to pass through this 9..
A 9.0 cm diameter wire coil is at first oriented so that its plane is perpendicular to a magnetic field of 0.67 T pointing up. During the course of 0.30 s, the field is changed to one of 0.25 T pointing down. What is the average induced emf in coil.
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