In the air, the amount of work done is equal to 4 If the lifting cable of a hoist lifts a 250-lb engine
times 250 lb, or 1,000 foot-pounds of work.
Select one:
O A.5
O B.2
O C.3
O D.4

energy can cross the boundaries of a closed system in the form of heat and mass

explanation:

the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true?

a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of

5

9

degree celsius.

a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.

a temperature increase of

5

9

degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.

a) i only

b) ii only

c) iii only

d) i and ii only

answer:

explain:

we don't have any choices.