Prokofiev V.L - solution to the entire option 04 in physics KR1

Problem 1.4: It is necessary to find the law of motion of a body weighing 1 kg, which, under the influence of a constant force of 2 N, begins to move at time t=0 with a speed x0=1 m/s and v0=2 m/s.

Problem 1.14: It is required to find the lifetime of an unstable meson particle moving at a speed of 0.99 s, if the distance it travels before decay is equal to 0.1 km.

Problem 1.24: For a flywheel shaped like a disk with a mass of 10 kg and a radius of 0.1 m, which was spun up to a frequency of 120 min-1 and after 10 seconds stopped under the influence of a constant friction force, it is necessary to find the torque of the friction forces, considering it constant.

Problem 1.34: The proton passed through an accelerating potential difference of 200 MB. It is required to determine how many times its relativistic mass is greater than its rest mass, and also to find the speed of the proton.

Problem 1.44: For a gas with a molecular concentration of 9 • 1019 cm-3 and an average kinetic energy of translational motion of molecules equal to 15 • 10-21 J, it is necessary to determine the gas pressure.

Problem 1.54: It is required to find the diffusion coefficient of helium at a pressure of 1 • 106 Pa and a temperature of 27 °C.

Problem 1.64: For nitrogen weighing 28 g, which at an initial temperature of 27 °C undergoes adiabatic expansion by a factor of two, it is necessary to find the work done and the change in internal energy.

Problem 1.74: A heat engine operates according to the Carnot cycle with an efficiency of 0.4. It is necessary to determine what the efficiency of this machine will be if it performs the same cycle in the opposite direction.

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By purchasing "Prokofiev V.L - solution to the entire option 04 in physics KR1", you receive not only a complete solution to the option, but also a unique experience in studying physics from the author, who is a recognized expert in his field. This digital product is an indispensable assistant for anyone who is interested in physics and wants to improve their knowledge and skills in this field.

“Prokofiev V.L - solution to the entire option 04 in physics KR1” is a digital product that represents a detailed solution to all problems of option 04 in physics KR1, compiled by an authoritative author in the field of physics - Prokofiev V.L. The solution contains formulas, graphs, tables and figures necessary to solve each problem.

The solution includes the following tasks:

1. Problem 1.4 - it is necessary to find the law of motion of a body weighing 1 kg under the action of a constant force of 2 N, if at the moment t=0 we have x0= 1 and v0=2 m/s.

2. Problem 1.14 - it is required to find the proper lifetime of an unstable meson particle moving at a speed of 0.99 s, if the distance it travels before decay is equal to 0.1 km.

3. Problem 1.24 - it is necessary to find the moment of friction forces, considering it constant, for a flywheel shaped like a disk with a mass of 10 kg and a radius of 0.1 m, which was spun up to a frequency of 120 min-1 and after 10 seconds stopped under the influence of a constant friction force.

4. Problem 1.34 - you need to determine how many times the relativistic mass of a proton is greater than the rest mass and find the speed of a proton that has passed through an accelerating potential difference of 200 MB.

5. Problem 1.44 - it is necessary to determine the pressure of a gas with a concentration of molecules of 9 • 1019 cm-3 and an average kinetic energy of translational motion of molecules equal to 15 • 10-21 J.

6. Problem 1.54 - you need to find the diffusion coefficient of helium at a pressure of 1 • 106 Pa and a temperature of 27 °C.

7. Problem 1.64 - it is necessary to find the work done and the change in internal energy during the adiabatic expansion of 28 g of nitrogen, if its volume doubles at an initial temperature of 27 °C.

8. Problem 1.74 - it is required to determine the efficiency of a heat engine operating according to the Carnot cycle, if its efficiency is 0.4, and it will work in the opposite direction according to the same cycle.

By purchasing "Prokofiev V.L - solution to the entire option 04 in physics KR1", you receive not only a complete solution to the option, but also a unique experience in studying physics from the author, who is a recognized expert in his field. This digital product is an indispensable assistant for anyone who is interested in physics and wants to improve their knowledge and skills in this field.

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Prokofiev V.L - solution to the entire option 04 in physics KR1 is a collection of solutions to problems in physics corresponding to option 04 of Test 1. This collection contains solutions to problems 1.4, 1.14, 1.24, 1.34, 1.44, 1.54, 1.64 and 1.74, which cover various topics in physics: mechanics, electricity and magnetism, thermodynamics, etc.

In Problem 1.4 it is necessary to find the law of motion of a body under the action of a constant force under known initial conditions. Problem 1.14 requires finding the intrinsic lifetime of an unstable meson particle. In problem 1.24 you need to determine the moment of friction forces acting on the flywheel. In problem 1.34 you need to find the relativistic mass and speed of the proton. In problem 1.44, you need to determine the gas pressure for known values ​​of the average kinetic energy and concentration of molecules. Problem 1.54 requires finding the diffusion coefficient of helium under given conditions. In problem 1.64 it is necessary to find the work done and the change in internal energy during the adiabatic expansion of nitrogen. Problem 1.74 requires finding the efficiency of a heat engine operating on the Carnot cycle if its efficiency in the reverse cycle is known.

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