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GenaCL600 [577]
2 years ago
6

Calculate the molar heat capacity of a monatomic non-metallic solid at 298K which is characterized by an Einstein temperature of

2000K. Express your result as a multiple of 3R.

Physics
1 answer:
Ratling [72]2 years ago
3 0

Answer: 5.5 ×10^-2 ×3R. Non metals that are solid at room temperature has mono atomic atoms that has only 3 translational modes.

This is why their constant volume molar heat capacities are measured in multiples of 3R.

Explanation: see attachment

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The answer is C. Hope this helps.
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3 years ago
Explain whether demand is likely to be elastic or inelastic for Big Macs. A. Elastic comma since many other fast food items coul
anyanavicka [17]

Answer:

A - elastic since many other fast food items could be considered close substitutes.

Explanation:

The price elasticity of demand is how much the demand of the Big Macs will change due to a 1% change in price. Should the elasticity be greater than 1, the Big Macs will be elastic. Should it be less than 1, the Big Macs are inelastic.  

Demand elasticity is calculated as the percentage change in quantity demanded divided by a percentage change in price.

Since Big Macs are (i) a luxury good, and (ii) have close substitutes (other burgers available at McDonalds and other fast food stores), we will say their elasticity is greater than 1.  

This means that the demand of Big Macs will change due to a 1% increase in price due to the presence of close substitutes.  

3 0
2 years ago
What kind of image is formed by a convex lens when the object is less than a focal length away from the object?
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Bigger image and can get clearer
3 0
2 years ago
What is a force that slows things down and uses up energy?
horrorfan [7]

Answer: Friction

Explanation: Give me the brainiest

6 0
2 years ago
The table lists the mass and charge of a proton and a neutron.
Olegator [25]

The gravitational force is much larger than the electrical force for any distance between the particles.

Explanation:

The gravitational force between two particles is given by:

F=\frac{Gm_1 m_2}{r^2}

where

G is the gravitational constant

m1, m2 are the masses of the two particles

r is the separation between the two particles

The electric force between two particles is given by:

F=\frac{kq_1 q_2}{r^2}

where

k is the Coulomb's constant

q1, q2 are the charges of the two particles

r is the separation between the two particles

In this problem, we are comparing the gravitational force and the electric force between a proton and a neutron.

We must immediately notice that the charge of the neutron is zero, since it is electrically neutral:

q = 0

This means that the electric force between the proton and the neutron is always zero, regardless of their distance. And therefore, since their masses is not zero (and the gravitational force is never zero), the correct answer is

The gravitational force is much larger than the electrical force for any distance between the particles.

Learn more about gravitational force:

brainly.com/question/1724648

brainly.com/question/12785992

About electrical force:

brainly.com/question/8960054

brainly.com/question/4273177

#LearnwithBrainly

4 0
3 years ago
Read 2 more answers
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