1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lana66690 [7]
3 years ago
15

(a) What is the average useful power output of a person who does 6.00×106 J of useful work in 8.00 h? (b) Working at this rate,

how long will it take this person to lift 2000 kg of bricks 1.50 m to a platform? (Work done to lift his body can be omitted because it is not considered useful output here.)
Business
1 answer:
netineya [11]3 years ago
5 0

Answer:

(a) 208.33 J/s

(b) 141.12 s

Explanation:

(a) Energy is the rate of doing work.

Work is the product of power and time

Work = Power × Time

Power = Work/time

where work is in joule and time is in seconds

Given that work = 6 × 10^{6}

Time = 8 h = 8 × 60 × 60

 = 28800 seconds

Average useful power = \frac{6 ×10^{6} }{28800}

                                     = 208.33 J/s

(b) Given

mass = 2000kg , using g = 9.8 m/s2

Force = 2000 × 9.8

          = 19600N

Work =  Force × Distance ( considering that Work done to lift his body can be omitted because it is not considered useful output here)

Work = 19600 × 1.5

        = 29,400J

Time taken = Work/Power

                  = \frac{29400}{208.33} \\

                  = 141.12s

                  ≈ 2 Minutes 21 Seconds

At the rate of 208.33J/s, it will take the person 141.12 seconds to lift 2000 kg of bricks 1.50 m to a platform.

You might be interested in
vSelected financial data for The Portland Porcelain Works Coffee Mug Division is as​ follows: Sales $ 2 comma 000 comma 000 Oper
ioda

Answer:

Capital turnover = 2.5 times

Explanation:

given data

Sales =  $2,000,000

Operating income = $400,000

Total assets = $800,000

Current liabilities = $120,000

Target rate of return = 13​%

Weighted average cost of capital = 6​%

to find out

Portland Porcelain Works Coffee Mug Division capital​ turnover

solution

we get here Portland Porcelain Works Coffee Mug Division capital turnover that is find here by dividing sales by total assets

so

Capital turnover = \frac{sales}{total\ assets}     ......................1

put here value

Capital turnover = \frac{2,000,000}{800,000}

Capital turnover = 2.5 times

5 0
2 years ago
Suppose for a given consumer the marginal utility (MU) of a pizza is 100 utils and the MU of a hamburger is 80 utils, and that t
NemiM [27]

Answer:

<u>is not</u> , <u>consume more of hamburgers</u>

Explanation:

A consumer is said to have achieved equilibrium when within his budget constraint, he purchases that combination of two goods which yield maximum satisfaction to him.

The equation for consumer equilibrium for two products is given by

\frac{MU_{x} }{P_{x} } = \frac{MU_{y} }{P_{y} }

In the given case, \frac{MU_{x} }{P_{x} } = \frac{100}{15} = \frac{20}{3} = 6.666

                            \frac{MU_{y} }{P_{y} } = \frac{80}{10}    = 8

wherein, x= pizza

              y= hamburger

As is evident, the marginal utility per dollar spent is greater in case of a hamburger, the consumer is not in a state of equilibrium.

Thus, he should consume more units of Hamburgers in order to maximize his utility.

3 0
3 years ago
Reagan Corp. acquired one hundred percent of Ford Inc. on January 1, 2016, at a price in excess of the subsidiary's fair value.
Artyom0805 [142]

Answer:

B. $497,000

Explanation:

           Consolidated Balance of Equipment

Excess value at the acquisition                  $110,000

($350,000-$240000)

Book value as on Dec 31 2018 of Ford      $170,000

Book value as on Dec 31 2018 of Regent  $250,000

Less: excess depreciation                          <u>-$33,000  </u> ($110,000/10*3)

Consolidated balance of equipment        <u>$497,000</u>

3 0
3 years ago
A stock quote indicates a stock price of $85 and a dividend yield of 4%. The latest quarterly dividend received by stock investo
vodka [1.7K]

Answer:

Quarterly dividend = $0.85

Explanation:

Shares are instruments that are used to obtain funds by businesses. Buyers of shares get ownership of part of the company in exchange for their money invested.

As a way to motivate investors to buy, companies quote a dividend payout to investors.

In the given scenario the dividend yield is 4% on a $85 stock

The yield is yearly

Yearly dividend = $85 * 0.04 = $3.4

We are required to get the quarterly dividend

Quarterly dividend = 3.4 ÷ 4

Quarterly dividend = $0.85

8 0
3 years ago
Decision makers can help the community recover from an event more quickly by:
maria [59]

Answer: D

Explanation:

The ability to make sound, timely decisions during an emergency is critical. Effective decision making can ,Avoid tragedy ,help manage incidents.

build community trust and support.

help the community recover from an event more quickly. Conversely, poor decision making or the absence of decisions potentially can result in injury or death to victims and/or responders.

4 0
2 years ago
Other questions:
  • Ortein, a shoe manufacturing company, wanted to cut costs and hence laid off half its employees from two of its departments. It
    7·1 answer
  • At the beginning of the current fiscal year, the balance sheet of Hughey Inc. showed stockholders' equity of $523,000. During th
    8·1 answer
  • Which of the following is an external driver of change? A. talent shortages B. budget changes C. top management D. deregulation
    5·1 answer
  • Issuing Bonds at a Discount On the first day of the fiscal year, a company issues a $4,000,000, 6%, 8-year bond that pays semian
    14·1 answer
  • J Corporation has two divisions. Division A has a contribution margin of $79,300 and Division B has a contribution margin of $12
    6·1 answer
  • A large distributor has 4 retail outlets. Currently each outlet manages its ordering independently. Demand at each retail outlet
    6·1 answer
  • What topic should not be discussed in a salon (Cosmetology) ​
    10·1 answer
  • Define your seven weakness and seven strengths with reason
    9·1 answer
  • Carla Vista Company has the following information available for September 2020.
    10·1 answer
  • allen is recording payroll that was processed outside. which quickbooks function would be most useful?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!