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A chamber with a fixed volume of 1.0 m3 contains a monatomic gas at 3.00 102 K. The chamber is heated to a temperature of 5.00 102 K. This operation requires 10.0J of heat. (Assume all the energy is transferred to the gas.) How many gas molecules are in the chamber?
molecules
A power supply maintains a potential difference of 86.1 V across a 1070-? resistor. What is the current in the resistor
10-nC point charge is located at the center of a thin spherical shell of radius 8.0 cm carrying -20 nC distributed uniformly over its surface. What is the magnitude of the electric field 2.0 cm from the point charge
The frequency of an oscillator making traveling waves is tripled. What happens to the velocity of the wave
A 70.0 kg football player leaps straight up into the air (with no horizontal velocity) to catch a pass. If the ball was moving horizontally when it was caught, how fast was the ball travelling
A force of 45 N acts on a ball for 0.2 sec If the ball is initially at rest, What is the final momentum of the ball
In astronomy it is common to expose a photographic plate to a particular portion of the night sky for quite some time in order to gather plenty of light. For how long should Matt expose a second plate located 4.1 m from the source
question1a knight sits on a castle wall during a siege. to while away time he notes that boulders catapulted from below
The heating element of a simple heater consists of a 2.2-m-long, 0.65-mm-diameter nichrome wire. calculate the resistivity of nichrome in this situation
In the diagram below, a student compresses the spring in a pop-up toy 0.020 meter. how much energy, in Joules, is being stored in the spring
Three point charges, -6.05 10-9 C, -9.40 10-9 C, and +7.25 10-9 C, are fixed at different positions on a circle. What is the radius of the circle
A resistor, capacitor and inductor are connected in series to an ac source with a frequency of 30 Hz and an rms potential of 40 V. What is the resonance frequency for this circuit
A bucket of mass 1.70kg is whirled in a vertical circle of radius 1.55m . At the lowest point of its motion the tension in the rope supporting the bucket is 21.0N. Find the speed of the bucket
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