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
Svetllana [295]
3 years ago
10

A person lifts a 4.5 kg cement block a vertical distance of 1.4 m and then carries the block horizontally a distance of 8.7 m. T

he acceleration of gravity is 9.81 m/s 2 . a) Determine the work done by the person in the process. Answer in units of J.
Social Studies
1 answer:
ch4aika [34]3 years ago
3 0

Answer:

workdone by the person in J is 445.92J

Explanation:

workdone= force x total distance

force= mass x acceleration due to gravity(g)\

mass=4.5kg

g=9.81m/s

force= 4.5 x 9.81 =44.15N

total distance=1.4+8.7=10.1m

workdone=44.15 x 10.1

                =445.92J

You might be interested in
Deserts to the east and west protected the Egyptians from what?
Dmitry_Shevchenko [17]
I think they were protected by invaders

4 0
3 years ago
How might the numbers in this document worry Chinese leaders? In China's One-Child Policy: Was It a Good Idea?
strojnjashka [21]

Explanation:

The Chinese government in order to curb the ever-growing population of china come up with a policy called the one-child policy in 1980.  

The government viwed population to be growing rapidly and rapid growth would cause problems like unemployment, lack of resources, and hence, increase in criminal activities. The policy benefitted China and its population growth declined significantly over the years.

However, after 3 decades of the one-child policy, china saw a starking gender gap in its consensus. With only one child allowed people preferred male children over female. This caused an imbalance in the gender ratio. Moreover, the Chinese population started to age. The average from 28years to 39.6 years in three decades. With the increase in the numbers of old people, people in the working force started to decline.

Hence, recently in 2015 china repealed the one-child policy from all over its country. Although they allowed having two children now. "To improve the balanced development of population" – an apparent reference to the country's female-to-male sex.

8 0
3 years ago
Why are other areas relatively empty?
FromTheMoon [43]
Because people are picky on where they live
6 0
3 years ago
1. The first Europeans to explore Georgia were from which country?
slava [35]
Europ, n to find more land
7 0
3 years ago
New inventions caused the workplace to be moved from cottages to what
Oliga [24]
The answer is Factories.
New inventions in pieces of machinery make it more efficient for the company's owner to create a building structure that far different from the common cottage.
factories provide several features that do not exist in a cottage, such as waste pipe, Tall room in order to stack up inventories etc.
6 0
4 years ago
Read 2 more answers
Other questions:
  • If you agree that public opinion plays a crucial role in democratic government, what also must you believe for your views to be
    14·1 answer
  • Given the outcome of this case, how were the bankruptcy attorneys compensated? a. They were not compensated, and therefore, thei
    10·1 answer
  • At first, which group was most common as workers in the American colonies?
    10·1 answer
  • Yu-wai just met a woman he feels attracted to. he keeps saying her name over and over to himself to make sure he doesn't forget
    13·1 answer
  • As an adult and a parent of a 4-year-old child, camille has seen many children begin to cry when placed on the lap of the mall s
    15·1 answer
  • Which modern nation is one of the few remaining examples of an oligarchy?
    11·2 answers
  • What were three controversies Americans were facing during the 1960's and 1970's?
    9·2 answers
  • Differentiate between followership and leadership​
    7·2 answers
  • 1.2 Show in TWO ways the influence of values on the choice of goals you set
    7·1 answer
  • What act was passed to allow american workers to opt out of the union in their workplace
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!