Answer:
C
Explanation:
the answer you have is correct (:
The correct answer is B) coal.
The industry that was influenced by the steam engine and first allowed for technological innovations in transportation was the coal industry.
The steam engine used coal to work. This new invention served to produce energy in a most powerful way than other devices.
The invention of the steam engine changed the way people produced goods in industries and in the transportation industry. Indeed, this invention transformed industries.
New machines in the fabrics helped to introduce the concept of mass production to produce goods more efficiently and at better costs. In the transportation industry, the steam engine allowed the development of railroads as the best means of transportation in the 1800s.
Answer:
New price = Initial price(1.75) ;
$21
Explanation:
Given that:
Original price = $12
Percentage increase = 75%
The percent equation :
Initial percentage = 100%
Proposed % increase = 75%
New price = initial price(100% + 75%)
New price = Initial price(1 + 0.75)
New price = Initial price(1.75)
The New price is thus ;
$12 * 1.75 = $21
B. Weakened
Overtiredness has a negative effect on driving capabilities.
Hope this helps!!
Answer:
- 484 KJ/mol
Explanation:
The reaction equation is;
CH4(g) + F2 (g) ------> CH3F(g) + HF(g)
The enthalpy of the reaction can be calculated from bond energies using the formula;
ΔHreaction = Bond energy of reactants - bond energy of products
or
ΔHreaction = Bonds broken - bonds formed
[4(413) + 1(155) - 3(413) + 1(485) + 1(567)]
[(1652 + 155) - (1239 + 485 + 567)]
[1807 - 2291]
= - 484 KJ/mol
