False, insomnia is the difficulty to fall asleep repeatedly. Missing one night of sleep wouldn't make you an insomniac but missing sleep every other night or not being able to sleep would.
Answer:
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Answer:
65.14 g
Explanation:
The change in the entropy of two ,metals on mixing is
Here, R is real gas constant, n_{cu} is the number of moles of the copper, and n_{Ni} is the number of moles of nickel
Thus the number of moles of Nickel is
=1.7 moles
now put n_{Ni} = 1.7 ΔS= 15,
R= 8.314 and solve
On solving the number of moles of copper in the mixture
n_cu= 1.025
Thus the mass of copper is = n_cu×M_cu = 1.025×63.55 = 65.14 g
Therefore the required mass is = 65.14 g
The momentum of a 5kg object that has a velocity of 1.2m/s is 6.0kgm/s.
<h3> MOMENTUM:</h3>
Momentum of a substance is the product of its mass and velocity. That is;
Momentum (p) = mass (m) × velocity (v)
According to this question, an object has a mass of 5kg and velocity of 1.2m/s. The momentum is calculated thus:
Momentum = 5kg × 1.2m/s
Momentum = 6kgm/s.
Therefore, the momentum of a 5kg object that has a velocity of 1.2m/s is 6.0kgm/s.
Learn more about momentum at: brainly.com/question/250648?referrer=searchResults
The angular velcoity of this cylinder when the downward speed of the elevator is 1.2 m/s would be 6 rad/s.
<u>Given the following data:</u>
Radius of cylinder = 0.20 meter.
Linear velocity = 1.2 m/s.
<h3>What is angular velocity?</h3>
Angular velocity can be defined as the rate of change of angular displacement of an object with respect to time. Thus, it is a measure of how fast and quickly an object revolves or rotates relative to another point or how its angular position changes with respect to time.
<h3>The formula for angular velcoity.</h3>
Mathematically, angular velcoity is given by this formula:
Substituting the given parameters into the formula, we have;
Angular velocity = 6 rad/s.
Read more on angular velcoity here: brainly.com/question/6860269