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3 years ago

Is an atom with a nucleus of 31 protons and 31 neutrons a stable isotope?

1 answer:

6 0

No. Since the atom has 31 protons, that means it's an isotope of gallium. Looking up gallium, you can determine that in nature it's composed of the two stable isotopes, gallium-69 and gallium-71, which have 38 and 40 neutrons respectively. Looking further, you will find that gallium-62 has a half life of 116.18 milliseconds which means it's quite unstable.

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In business, which of the following tones should be part of every written communications? a. Funny b.Vague c.Sarcastic d.polite

dlinn [17]

Answer:

Polite

Explanation:

8 0

3 years ago

Presented below are incomplete manufacturing cost data.

Usimov [2.4K]

Answer and Explanation:

The computation of the missing amount is as follows

As we know that

Total manufacturing costs is

= Direct materials cost + Direct labor cost + Factory overhead cost

And,

Cost of goods manufactured is

= Total manufacturing costs + Beginning work in process - ending work in process

Based on this, the calculation is as follows

 Direct materials Direct labor Factory Total

 overhead manufacturing costs 

1. $44,000 $62,200 $51,100 $157,300

2. $78,500 $77,500 $144,000 $300,000

3. $58,600 $138,400 $114,000 $311,000

Now

Total Manufacturing Costs Beg. Work End. Work Cost of Goods

in Process in Process Manufactured

1. $157,300 $122,000 $85,200 $194,100

2. $300,000 $123,400 $99,800 $323,600

3. $311,000 $465,000 $57,000 $719,000

4 0

3 years ago

A company with a labor agreement under which union membership cannot be required as a condition of employment is considered a

frez [133]

A company with a labor agreement under which union membership cannot be required as a condition of employment is considered an open shop.
This means that the employees do not have to join a trade union in order to work there at this particular company. So regardless of the fact whether these workers are members of the union or not, they will be employed and paid equally.

7 0

3 years ago

The product-variety externality is associated with the A. opportunity cost of firms exiting a monopolistically competitive indus

Viefleur [7K]

Answer:

The correct answer is letter "D": consumer surplus that is generated from the introduction of a new product.

Explanation:

Externalities are defined as the effects passed on third parties as a result of the actions of another individual or organization even if the third party has nothing to do with the operations of the individuals or entities. Externalities can be positive or negative.

The product-variety externality is an example of a positive externality. The product-variety externality takes place when a new product is introduced in the market generating a consumer surplus. Thus, end-users benefit from the variety of products available in the market even if that represents more competition for companies.

4 0

3 years ago

Some firms will ______ the market, and the market supply curve will shift ______.

torisob [31]

Answer: (D) enter; rightward

Explanation: As new firms enter the market, there is a shift in the supply curve to the right, decrease in market prices and decrease in economic profit.

3 0

3 years ago