Salutations!
When fossil fuels are burnt, what 2 gases are given off?
When fossil fuels are burnt, the following are one of the two gases when they are given off:
→ Carbon dioxide: Carbon dioxide is a green house gas, and plays a major role in the global warming.
→ Carbon Monoxide: Carbon monoxide is a gas that is dangerous to human beings when released.
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Have a great day!
Answer:
Compounds are two or more elements chemically combined in definite proportions by weight.
Mixtures are two or more substances not chemically combined.
Explanation:
Hope this helped Mark BRAINLIEST!!!
Axial Tilt and Sun Energy
This axial tilt means that during the Earth's journey around the sun the poles receive varying amounts of sunlight. The equator, however, receives relatively consistent sunlight all year. The consistency of energy means the equator's temperature stays relatively constant all year.
Answer:
mass of the composite lump is 10 kg
Explanation:
given data
mass = 4 kg
to find out
mass of composite lump
solution
we know energy is conserved so
so m1 = m2 = m0 that is 4kg
and
E(1) release+ E(2) release = E(1,2) rest
so γ(1)m(1)c² + γ(2)m(2)c² = Mc² ..........................1
that why here
|v(1)| = |v(2)| = 3/5 c ......................2
and
γ = 1 / √(1 − v²/c²) .......................3
put here v = 3 and c is 5
γ = 1 /√(1 − 9/25)
γ = 5/4
so
γ(1) = γ(2) = γ = 5/4
so from equation 1
γ(1)m(1)c² + γ(2)m(2)c² = Mc²
M = 2γm0
M = 2(5/4 )(4)
M = 10 kg
so mass of the composite lump is 10 kg
