Which describes who will record their measurements in joules?

a) lily and henry

b.) astrid and bob

c.) lily, astrid, henry, and bob

d.) astrid, henry, and bob

The correct answer to the question is C.)  Lily,Astrid, Henry, and Bob.

EXPLANATION:

As per the question, we have two physical quantities . One is work and the other one is energy.

Energy and work are inter convertible in nature . The energy of a substance is defined as its ability to do work . Hence, work will be done on the body or by the body in the expense of energy.

From above, we see that both energy and work have to be measured in same units.

The unit of work is joule [ J ] . Hence, the unit of energy must be joule.

As per the question, Lily and Astrid are measuring the change in energy in different systems which is to be measured in joule unit.

Again Henry and Bob are measuring work done by different systems. The work done is also measured in joule unit.

Hence, all the persons will record their measurements in joules.

graph slopes whilst gas cools, then it is flat whilst conensation to liquid happens, the coolong liquid then graphs as a slope when it solidifies graph is flat

latent heat

-first use of geothermal energy occurred more than 10,000 years ago in north america by american paleo-indians

-the first industrial use of geothermal energy began near pisa, italy in late 18th century

-in 1904, italian scientist piero ginori conti invented the first geothermal electric power plant in which steam was used to generate the power

-with the above experiment, the first geothermal plant in usa started in 1922 with a capacity of 250 kilowatts

-however, in 1946 first ground-source geothermal heat pump installed at commonwealth building in portland, oregon

-during the 1960’s, pacific gas and electric began operation of first large scale geothermal power plant in san francisco, producing 11 megawatts

-in 1973, when oil crisis began many countries began looking for renewable energy sources and by 1980’s geothermal heat pumps (ghp) started gaining popularity in order to reduce heating and cooling costs

-as effect of climate change started showing results, governments of various countries joined hands to fight against it, for which kyoto protocol was signed in japan in 1997, laid out emission targets for rich countries and required that they transfer funds and technology to developing countries, 184 countries have ratified it

hope this