Question

I want the answer of first and last question not middle question answer ​

Answer 1

the first one is ideal

I'm not sure about the last one sorry

Answer 2

Answer:

First question:

b. Ideal machine

last question:

a. 9 × 10^10 J

Explanation:

${ \bf{E = m {c}^{2} }} \\ { \sf{E = (1 \times {10}^{ - 6} ) \times {(3 \times 10 {}^{8}) }^{2} }} \\ { \sf{E = 9 \times {10}^{10} \: joules }}$