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Two capacitors are connected in parallel across the terminals of a battery. One has a capacitance of 2.0 µF and the other a capacitance of 4.5 µF. These two capacitors together store 5.70 10-5 C of charge. What is the voltage of the battery?
An arrow is shot from a height of 1.9 m toward a cliff of height H, what is the height of the cliff in meters and what is the max height of the arrow along its trajectory in meters
The exhaust temperature of a Carnot heat engine is 250°C, What is the intake temperature if the efficiency of the engine is 27.0%
Lillian (mass 32.0 kg) standing on slippery ice catches her leaping dog (mass 15 kg) moving horizontally at 2.0 m/s. Evaluate what is the speed of Lillian and her dog after the catch?
You land on a spherical asteroid and take a walk for 3km. You notice that the stars ahead of you rise 36 degrees as you walk
Susie is out fishing on a calm, sunny day. She hooks an old tire that is resting on the lake bottom, and hauls it into her boat
If the pump outlet is blocked and the handle pushed until internal length of the pump cylinder is 21, by how much does the air temperature rise? Suppose that no heat is lost.
The portion of the board on the table measures .30m and the portion of the table measures .20m. Explain how far can the center of the box be over the table before the board begins to tilt?
An electric motor rotating a workshop grinding wheel at a rate of 93 rev/min is switched off. Assume the wheel has the constant negative angular acceleration of magnitude 2rad/s2.
As part of a circuit act, a person drives a motorcycle with constant speed v around the inside of a vertical track of radius r. If the combined mass of the motorcycle and rider is m, find the normal force exerted on the motorcycle by the track at ..
A velodrome track is banked so that a bicycle traveling at 69.9 km/h will have no tendency to slip to either side when traveling on the path that has a radius of curvature of 54.0 m
Assume that it takes 2.30 kg of oxygen to burn 1.00 kg of coal. (The actual amount varies with the type of the coal). What is the total mass of the reagents used in the combustion all through the 30 days.
The skis have a thrust of 220 N. Sam's speed at the bottom is 45.0 {rm m/s}. Illustrate what is the coefficient of kinetic friction of his skis on snow?
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