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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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Lynn regularly works a 40-hour week and earns $9 per hour. She receives time-and-a-half pay for each hour of overtime she works.
ANTONII [103]

Answer:

Her regular gross pay is $360

Explanation:

Regular gross pay is that pay which the person earn on daily basis or it is a fixed amount which he gets after completing a month.

In the question, we have to find out the regular gross pay which includes the daily earning of a person

So, her regular gross pay is equal to

= number of hours × rate per hour

= 40 × $9

= $360

We don't include overtime wages as it is not included in  regular gross pay. So, it is ignored.

Hence, her regular gross pay is $360

6 0
3 years ago
For the following three types of project life cycle, extensively explain their similarity and diffrence by the giving your examp
grin007 [14]

The differences between the project life cycle that includes the baum cycle, unido project cycle and the depsa project cycle is the established phase for drawing a project.

<h3>What is a project life cycle?</h3>

This refers to the organized way of viewing the entirety of a project that:

  • establishes the steps to complete a project
  • helps to maintain focus and momentum
  • creates better defined high-level stages of completion

The Baum project cycle in project management consist of the phae that includes Identification, Preparation, Appraisal, Negotiation, Implementation & Supervision and Evaluation

The Depsa project cycle from the sentence Development Project Studies Authority is a project cycle that comprises three major phase.

Read more about project life cycle

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7 0
1 year ago
Colt Carriage Company offers guided​ horse-drawn carriage rides through historic Charleston comma South Carolina. The carriage b
chubhunter [2.5K]

Answer:

1) Colt Carriage Company

Income Statement

For the month ended April 202x

Revenues:

  • Adults passengers $186,300
  • Children $81,000                      
  • Total revenues                                       $267,300

Variable costs:

  • City fees $26,730
  • Souvenirs $7,425
  • Brokerage fees $11,340
  • Carriage drivers $52,650
  • Total variable costs                                  <u>$98,145</u>

Contribution margin                                        $169,155

Period costs:

  • Depreciation $2,900
  • Horse leases $48,000
  • Marketing expenses $7,350
  • Payroll expenses $7,600
  • Total period costs                                  <u>$65,850</u>

Operating profit                                             $103,305

2) If the total amount of passengers increase by 10%, then all variable costs will increase by 10% except brokerage fees which would increase only by 6%. Revenues should also increase by 10%. Period costs should not change.

Contribution margin should increase by 10.29% and operating profit would increase by 16.81%.

Explanation:

since the information is not complete, I looked it up:

Revenues

13,500 passengers:

8,100 x $23 = $186,300

5,400 x $15 = $81,000

total $267,300

variable costs:

fees paid to the city 10% of total revenue

souvenirs $0.55 per passenger

brokerage fees 60% of total tickets x $1.40

carriage drivers $3.90 per passenger

fixed costs:

depreciation $2,900

horse leases $48,000

marketing expenses $7,350

payroll expenses $7,600

4 0
3 years ago
ecord adjusting journal entries for each of the following for year ended December 31. Assume no other adjusting entries are made
k0ka [10]

Answer: Please Refer to Explanation

Explanation:

Please see complete question attached to this answer.

A.

As the company has not paid the salary but they recognize it is an expense, it should be credited to Salaries payable from the salary expense account.

DR Salary Expense $ 18,500

CR Salary Payable $18,500

( To record Salary Expense incurred but not paid)

B.

As the company has not paid the interest but they recognize it is an expense, it should be credited to Interest Payable from the interest expense account until it is paid.

DR Interest Expense $400

CR Interest Payable $400

( To record interest expense on loan not paid )

C.

As the company has not paid the mortgage interest but they recognize it is an expense, it should be credited to mortgage payable from the mortgage account expense account

DR Mortgage Interest Expense $1,025

CR Mortgage Interest Payable $1,025

( To recording interest expense on mortgage not paid for the year).

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Health Occupations Students of America.


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