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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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Oscar has negotiated a lease for his sporting goods store in which he is required to pay $2,500 per month in rent. Oscar pays hi
AfilCa [17]

Answer:

The Oscar's fixed costs per month is $2,500

Explanation:

Fixed cost: The fixed cost is that cost in which the amount is remain fixed whether production level change or not, that means it does not have any effect on the production level.

In the given question,

Monthly rent is $2,500 which is fixed so, it would be considered as fixed cost

The per hour pay and electrical bill depend upon the total hours of operation which means if the more hours, the workers are engaged so more pay will be give to them, and more electricity bill come.

And if they are working few hours, than less rate and less electrical bill will be there which reflects the variable cost. So, these cost are considered variable cost. Thu, it would not be included in the fixed cost.

Hence, Oscar's fixed costs per month is $2,500

6 0
3 years ago
Option 1
agasfer [191]

Answer:

option 2 sorry if wrong

6 0
3 years ago
In the Land of Milk and Honey, they produce two goods: Milk and Honey. In 2014, milk cost $2 a gallon and they produced 10 gallo
Harman [31]

Answer:

Land of Milk and Honey

The real GDP in 2014 is:

= b. $40.

Explanation:

a) Data and Calculations:

                                         Milk           Honey            Total GDP

Cost per gallon in 2014   $2                 $1

Quantity produced           10                 20

Total production value  $20 ($2*10)  $20 ($1*20)    $40 ($20 + $20)

Cost per gallon in 2015   $2                 $1

Quantity produced           12                 24

Total production value  $24 ($2*12)  $24 ($1*24)    $48 ($24+ $24)

Cost per gallon in 2016   $2.50              $1.25

Quantity produced           12                   24

Total production value  $30 ($2.50*12)  $30 ($1.25*24) $60 ($30 + $30)

The real GDP in 2014 is the calculated value of $40.  Using 2015 as the base year, there is no inflation since the unit prices of milk and honey remained the same in both years.

6 0
3 years ago
An official statement has a dated date of March 1, but the first interest payment is October 15. This most likely reflects A) a
Greeley [361]

Answer:

A) a long coupon.

Explanation:

Hope this helps you :)

3 0
2 years ago
dia wants to improve her ____. her creative writing teacher suggest that she read genres of books that she usually finds dull​
Anton [14]

Answer:

well if it's dull books, shouldn't it be vocabulary. if it were concentrated she would be bored and her mind would wander elsewhere. but if it were vocabulary she would still find it dull. As if it were a dictionary, nobody wants to spend 5 hours reading every word in the dictionary

4 0
3 years ago
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