a.

1372 m/s

b.

1164 m/s

c.

950 m/s

d.

1050 m/s

e.

1287 m/s

Answer:

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur id consequat justo. Cras pellentesque urna ante, eget gravida quam pretium ut. Praesent aliquam nibh faucibus ligula placerat, eget pulvinar velit gravida. Nam sollicitudin pretium elit a feugiat. Vestibulum pharetra, sem quis tempor volutpat, magna diam tincidunt enim, in ullamcorper tellus nibh vitae turpis. In egestas convallis ultrices. Sed non sem ultricies, sollicitudin sem facilisis, commodo justo. Maecenas mattis sodales nunc, et auctor massa fermentum a. Maecenas eget nisl felis.

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur id consequat justo. Cras pellentesque urna ante, eget gravida quam pretium ut. Praesent aliquam nibh faucibus ligula placerat, eget pulvinar velit gravida. Nam sollicitudin pretium elit a feugiat. Vestibulum pharetra, sem quis tempor volutpat, magna diam tincidunt enim, in ullamcorper tellus nibh vitae turpis. In egestas convallis ultrices.

Answer

You must have a teacher account to see the answer

IARA TIP

Are you preparing an exam or test?

With Teachy, it's possible to generate these materials automatically, without spending hours searching for questions 😉

Those who search for this subject, also viewed these questions...

Question

Question

Difficulty Medium

Source:

Teachy

During an experiment in the laboratory, a group of students is working with a cylinder containing 1 mole of ideal monoatomic gas, initially at a temperature of 300 K and a volume of 0.025 m³. The gas is then subjected to an isothermal process, in which its volume is compressed to 0.0125 m³. Consider that the universal gas constant (R) is equal to 8.31 J/(mol.K) and that the Cp-Cv constant (specific heat at constant pressure minus specific heat at constant volume) is equal to R for an ideal monoatomic gas.
a) Determine the initial internal energy of the gas, using the relationship between internal energy and temperature.
b) Calculate the work done on the gas during the isothermal compression process.
c) Considering the results of items a) and b), discuss whether there was a variation in the internal energy of the gas at the end of the isothermal compression process. Justify your answer.

Thermodynamics and Collisions

Difficulty Medium

Question

Question

Difficulty Medium

Source:

Teachy

A scientist is working on the design of an environmentally friendly air conditioning system, using an ideal gas as a refrigerant in a cylinder. During the testing phase, the scientist conducts experiments with the gas to observe its behavior and calculate the internal energy of the system. Considering that the internal energy (U) of an ideal gas is given by the formula U = (n/2) * R * T, where n is the number of moles of the gas, R is the ideal gas constant (8.31 J/mol K), and T is the absolute temperature of the gas in Kelvin:
a) Calculate the internal energy of the gas inside the cylinder, knowing that the system contains 3 moles of gas and its temperature is 300 K.
b) Explain the main idea behind an environmentally friendly air conditioning system.
c) How can the use of digital technologies assist in estimating and supporting the construction of prototypes for this system?

Thermodynamics and Collisions

Difficulty Medium

Question

Question

Difficulty Medium

Source:

UNICESUMAR

Geometric and Physical Optics: Images from Lenses and Mirrors

Difficulty Medium

Question

Question

Difficulty Medium

Source:

Teachy

João is conducting an experiment in his Physics laboratory to determine the local acceleration due to gravity using a simple pendulum. He sets up a pendulum with a mass attached to a string of length L and measures the time it takes for the pendulum to complete 15 oscillations. Using this time and the given information, calculate the local acceleration due to gravity (g). Given that the period T of a simple pendulum is T = 2π√(L/g):
a) Determine the general expression to calculate 'g' using the period T and the length L;
b) Calculate the acceleration due to gravity (g) if João measured a time of 30 seconds for the pendulum to complete 15 oscillations and the length L of the string was 2.5 meters;
c) Discuss the importance of approximating the motion of the pendulum as simple harmonic motion and the limiting factors of this approximation.

Simple Harmonic Oscillators

Difficulty Medium

2023 - All rights reserved