Answer:
Explanation:
work done on an ideal gas, PV = - nRT
since the pressure is constant PΔV = - nRT
where n, number of moles = 0.240 mol, R, gas constant = 8.314 J/mol K
work done = - nR ( T₂ - T₁) = 0.24 mol × 8.314 ( 270 - 15) = -508.8 J
The total resistance and current flowing through the circuit is equal to 60 Ohms and 2 Amperes respectively.
<u>Given the following data:</u>
Resistors = 20 Ohms.
Voltage = 120 Volts.
<h3>How to determine the total resistance.</h3>
Since the three resistors are connected in series, we would calculate their total resistance by adding them up as follows:
RT = R1 + R2 + R3
RT = 20 + 20 + 20
RT = 60 Ohms.
Next, we would determine the current that is flowing through the circuit by applying Ohm's law.
From Ohm's law, we have:
V = IR
I = V/R
I = 120/60
I = 2 Amperes.
Read more resistance here: brainly.com/question/25813707
Answer:
The force needed will be greater to hold the object at rest.
Explanation:
For a better understanding let's take a look at the attached image.
In the image there is an example of this condition, we have an object of 3 kg-f mass, the first angle between the horizontal and the inclined plane is 35°. When we increase the angle to 45°. We can realize that we need to hold the object with a stronger force.
The calculation and the equations based on Newton's laws can be found in the attached image.
Current = charge per second
2 Coulombs per second = 2 Amperes
Potential difference = (current)x(resistance) in volts.
That's (2 Amperes) x (2 ohms).
That's how to do it.
I think you can find the answer now.
Answer:
Explanation:
The troposphere is hotter near the Earth's surface because heat from the Earth warms this air. ... Mesosphere: As the altitude increases, the air temperature decreases. The Mesosphere, like the troposphere layer, has a decrease in temperature with altitude because of the decreases in the density of the air molecules.