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One gram-mole of an ideal gas initially occupies V1 = 5.0 L at P1 = 117 kPa, and then expands to V2 = 10.0 L at constant pressure.
a) How much work was performed by the gas on its surroundings?
b) How much heat is absorbed (+) or liberated (-)?
c) What is the change in the internal energy of the gas?
A 9kg block is connected by a string over a light pulley to a 5kg block that is sliding over a flat table (i.e. the 9kg is pulling the 5kg off the table). If Co-efficient of kinetic friction is 0.200, find the tension in the string.
When she reaches the bus, explain how fast is the bus traveling? If the student's top speed is 2.20m/s^2 , will she catch the bus? What is the minimum speed the student must have to just catch up with the bus?
If the boy is traveling at 1 m/s relative to the ground, explain how fast does the boy appear to be moving relative to the woman? show your work.
26g of copper pellets are removed from a 300 C oven and immediately dropped into 110mL of water at 25 C in an insulated cup
Recently we were padding on a boat in a sea. Surprisingly we saw gleaming points in water during padding. Would you explain about this.
A 6.5×10-25-kg particle is vibrating with simple harmonic motion with a period of 5.0×10-6 s and a maximum speed of 6.00×102 m/s. Find the Maximum displacement of the particle.
You need to design a photodetector that can respond to the entire range of visible light. find the maximum possible work function of the cathode
A diving board of length 3{rm m} is supported at a point 1 {rm m} from the end, and a diver weighing 550 {rm N} stands at the free end. The diving board is of uniform cross section and weighs 295 {rm N}. Find out the magnitude of the force at the ..
A thin wire of length 3.14 meters has a current of 6.00 Amperes running through it. what is the magnetic field (in Tesla) inside the cylinder
A small bulb is rated at 7.5 W when operated at 125 V. The tungsten filament has a temperature coefficient of resistivity a = 4.5 ? 10-3 / °C. What is the resistance of the filament (in ohms) at room temperature
A 32.2 uF capacitor is connected to a 50.2 ohm resistor and a generator whose rms output is 37.2 V at 50.0 Hz. Calculate the rms current in the circuit. Calculate the phase angle for the circuit
q1. a house is heated by a 24.0 kw electric furnace which uses resistance heating. the rate for electrical energy is
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