there are 8 moon phases.
They are - First quarter, waxing crescent, new, waning crescent, third quarter, Waning gibbous, full, and waxing gibbous
Answer:
Mostly Metals, But hydrogen is the only one that isn't.
Answer: b
Explanation: t affects weather patterns, it affects ocean currents, and it even affects air travel. As important as the Coriolis Effect is, many have not heard about it, and even fewer understand it. In simple terms, the Coriolis Effect makes things (like planes or currents of air) traveling long distances around the Earth appear to move at a curve as opposed to a straight line.
It’s a pretty weird phenomenon, but the cause is simple: Different parts of the Earth move at different speeds.
<em>Answer:</em>
Explanation:
<em>Formula:</em>
Where Nt is the amount of substance remaining after time t,
N0 is the amount of substance at time t = 0,
t is the time at which we have to find out how much substance disintegrated from t = 0 to t = t
& t_1/2 is the half life corresponding radioactive sample.
<em>Given:</em>
N0 = 200g
t= 40 days
t1/2 = 4 days
<em>To find:</em>
Nt =?
<em>Solution:</em>
Substituting given data in above formula,
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