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12345 [234]
3 years ago
12

A metal alloy bolt is initially at 100.0°C. It is dropped into a coffee cup calorimeter containing 50.0 g of water at a temperat

ure of 20.0°C. After stirring, the final temperature of both bolt and water is 25.0°C. Assuming no heat losses, and that the specific heat (capacity) of water is 4.18 J/(g ∙ K), what is the heat capacity of the bolt in J/K?
Business
1 answer:
Ad libitum [116K]3 years ago
4 0

Answer:

the heat capacity of the bolt is 13.9 J/K

Explanation:

J/K is short of " joule per kelvin", is the international system unit of heat capacity

heat energy = (mass of substance)(specific heat)(change in temperature)

Q = mc∆T

Q = heat energy (Joules, J)

m = mass of a substance (kg)

c = specific heat (units J/kg∙K)

∆ is a symbol meaning "the change in"

∆T = change in temperature (Kelvins, K)

Heat gained by water = heat lost by copper  = Q = mC∆T = (50 g)(4.18 J/g/deg)(5 deg) = 1045 J   = C x ∆T

C = 1045 J/75 = 13.9 J/deg

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When you purchase shares of a company in the market, who are you buying those shares from?
leva [86]

Answer:

Investor

Explanation:

A stock is a speculation. At the point when you buy an organization's stock, you're buying a little bit of that organization, called an offer. Investors buy stocks in organizations they think will go up in esteem. On the off chance that that occurs, the organization's stock increments in esteem also.

Investor is a person who purchase shares of a company in the market.

3 0
3 years ago
3. What is the value of the bullwhip measure for a company with a standard deviation of demand equal to 20, and a variance of or
bazaltina [42]

Answer:

1.125

Explanation:

The computation of the value of the bullwhip measure is shown below

As we know that

The Variance of demand = Square of the standard deviation of demand

i.e.

= square of 20

= 400

And, the Variance of orders = 450

Now the

Bullwhip measure is

= The variance of orders ÷ the variance of demand

= 450 ÷ 400

= 1.125

4 0
2 years ago
Assume the MPC is 0.6. If government were to impose $10 billion of new taxes on household income, consumption spending would ini
mihalych1998 [28]

Answer:

$6 billion

Explanation:

Calculation to determine what consumption spending would initially decrease by

Using this formula

Decrease in Consumption spending=MPC * New taxes on household income

Let plug in the formula

Decrease in Consumption spending=0.6*$10 billion

Decrease in Consumption spending=$6 billion

Therefore consumption spending would initially decrease by $6 billion

4 0
3 years ago
You are considering an investment in fields and struthers, Inc, and want to evaluate the firm's free cash flow From the income s
kirill [66]

Answer:

A.) $81,100,000

B.) $64,000,000

C.) $17,100,000

Explanation:

EBIT = $90 million

Tax rate = 21%

Depreciation = $10 million

gross fixed assets increased by $56 million

current assets increased by $44 million

current liabilities increased by $36 million

A.) Operating Cash flow for 2021

EBIT + Depreciation - (EBIT × Tax rate)

$90, 000,000 + 10,000,000 - (90,000,000×0.21)

100,000,000 - (18,900,000) = $81,100,000

B.) Investment in Operating capital for 2021:

Increase in gross fixed asset + (increase in current asset - increase in liability)

$56,000,000 + ( $44,000,000-$36,000,000)

= $56,000,000 + $8,000,000

= $64,000,000

C.) Free cash flow

Operating Cash flow - investment in operating

$81,100,100 - $64,000,000 = $17,100,000

3 0
2 years ago
In reviewing the firms whose stocks comprise the Dow Jones Industrial Average, we discover: a) There is an even mix between big
Svetach [21]

Answer:

C, is the correct answer.

Explanation:

7 0
3 years ago
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