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Three capacitors of capacitances 2 pF, 3 pF and 4 pF are connected in parallel.
(a) What is the total capacitance of the combination?
(b) Determine the charge on each capacitor if the combination is connected to a 100 V supply.
A parachutist descending at a speed of 13.4 m/s loses a shoe at an altitude of 54.2 m. Illustrate what is the velocity of the shoe just before it hits the ground? The acceleration of gravity is 9.81 m/s2.
On a summer day, the air conditioning breaks down and the air inyour classroom becomes very warm and muggy with a vapor pressure of20 hPa and a temperature of 25 degree Celsius. what is the virtul temperature of the air?
A 31000- kg railroad car with an open top rolls along a straight track with a speed of 4.91 km/h. It passes under a water fall that pours water straight into the car at a rate of 600 kg/s How much force is necessary to keep the car traveling at const..
a driver puts on the brakes and decelerates from 25 m/s to zero in12.0s. what distance does the car travel
A sophomore with nothing better to do adds heat to 0.350 kg ofice at 0.0oC until it is all melted. What is the total change in entropy of the water and the heat source
When the switch was first closed to charge the capacitor, what was the effective resistance of the capacitor when it was fully charged
A 1.5 mm-diameter, 40 cm -long copper wire carries a 4.5 A current. What is the potential difference between the ends of the wire
A piece of glass has a temperature of 85.8° C. Liquid that has a temperature of 43.0° C is poured over the glass, completely covering it, determine the specific heat capacity of the liquid
A man whose mass is 80kg on the earth's surface is in a spacecraft at a height of 2 Earth radii above the earth's surface. At that height what is the acceleration due to gravity
Water is flowing in a cylindrical pipe of varying circular cross-sectional area, and at all points the water completely fills the pipe. What is the radius of the pipe at this point
Calculate the entropy change for the following system: One kilogram of 80 C aluminum is placed into 2L of 20 C water in a container with negligible heat capacity and adiabatic walls. The water and aluminum reach thermal equilibrium. Assume specific h..
The drawing shows four point charges. The value of q is3.1 μC, and the distance d is 0.89 m. Find the total potential at the location P. Assume that the potential of a point charge is zero at infinity.
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