Search & Filtering
Mark sees a crushed soda can on the ground. He kicks it fiercely with a velocity of 12m/s at projected angle of 36°. What is the highest point that the soda can reaches? Sin 36 degrees equals 0.866
Mark sees a crushed soda can on the ground. He kicks it fiercely with a velocity of 12m/s at projected angle of 36°. What is the highest point that the soda can reaches? Sin 36 degrees equals 0.866. 2. A 5000 kg. freight train traveling at speed of 28 m/s strikes an identical car at rest. If they stick
An electrical resistance coil, wired to the surroundings, is placed inside a cylinder fitted with a frictionless piston and cont"]ning
an ideal gas' The walls of the cylinder and thepiston are adiabatic.
A current of 5 A is maintained through the resiitance, across which there is a voltage drop of 100 v. The piston is opposed by a constant
external force of 5000N. At what speed must the piston move outwards in order that there is no change in the tempeiature of the gas? Is the electrical energy transferred tothe gas as heat or work?
suppose now that the wans are diathermai and the resistance coil is wrapped round the outside of the cylinder. Regard the system the cylinder and the gas, excruding the heating coil. Is the energy transfer now heat of work?
The mean speed of the molecules of an ideal gas is 2.0×10^3 ms^-1 . The radius of a gas molecule is 1.5×10^-10 m . Calculate the (i) collision frequency, and (ii) mean free path. It is given that 4×10^24 m^-3 .
Find the change in the internal energy of one mole of a
monatomic ideal gas in an isobaric expansion at I atm from a volume
of 5m3 to a volume of 10m3. y for a monatomic ideal gas is 5/3
Two moles of a monatomic ideal gas are at a temperature of 309 5. The gas expands reversibly and isothermally to twice its original volume. Calculate the work done by the gas, the heat supplied and the change in the internal energy
An electrical resistance coil, wired to the surroundings, is placed inside a cylinder fitted with a frictionless piston and cont"]ning
an ideal gas' The walls of the cylinder and thepiston are adiabatic.
A current of 5 A is maintained through the resiitance, across which there is a voltage drop of 100 v. The piston is opposed by a constant
external force of 5000N. At what speed must the piston move outwards in order that there is no change in the tempeiature of the gas? Is the electrical energy transferred tothe gas as heat or work?
suppose now that the wans are diathermai and the resistance coil is wrapped round the outside of the cylinder. Regard the system the cylinder and the gas, excruding the heating coil. Is the energy transfer now heat of work?
A copper wire has a resistance of 5 Ω at 20°C. What is its resistance if the temperature. Changed to 75°C
I'm trying to understand how water increases its size when it freezes. And if it's possible to recreate the experiment in vacuum to observe if it still expands as it does on the atmosphere
Use the kinetic theory of matter to explain the difference between solids liquids and gases
