This question involves the concepts of work done, pressure, and temperature.
The work done per mol of the air is "-724.71 J/mol".
Using the given formula for work done:
where,
W = work done per mol = ?
R = universal gas constant = 8.314 J/mol.k
T = absolute temperature = 30°C + 273 = 303 k
P₁ = initial pressure = 30 KPa
P₂ = final pressure = 40 KPa
Therefore,
<u>W = -724.71 J/mol</u>
<u></u>
Learn more about pressure here:
brainly.com/question/23358029?referrer=searchResults
Answer:
Dopamine is a neurotransmitter chemical which is released by the neurons of the brain for transfer of information from cell to cell. It regulates the movement and emotional responses in the human body. The abnormal levels of dopamine can be responsible for the neurological diseases.
The decrease of dopamine liberation from the substantia nigra of the brain can lead to Parkinson's disease whereas the excess release may lead to over-sensitivity of the dopamine receptors and can be responsible for the disease schizophrenia.
Answer:
<em>The magnetic field's direction is towards the north</em>
<em></em>
Explanation:
The force on a positive charge in a uniform magnetic field is represented by the right hand rule. To determine the direction of the force, place your right hand with your palm up, and your thumb at 90° to the other fingers. If the fingers represent the magnetic field, and the thumb the direction of the positive charge, then the palm will push up in the direction of the force. But a negative charge like an electron pushes in exactly the opposite direction. So if you follow this rule, you will find that the magnetic field points towards the north.
Answer:
The final vertical velocity is given by Equation
Explanation:
Answer: 53 m
Explanation:
Work = Force × Displacement
W= F s cosΘ
Where, s is the displacement and F is the force. Θ is the angle between force and displacement
F cosθ is the component of force acting in the horizontal direction.
The air pump applies F = 150 N force at an angle Θ = 45°
W = 5600 J
⇒s = W/F cosθ
Thus, the horizontal distance the water bottle rocket travels is 53 m
