Hi there!
I. They are the same.
Due to the Conservation of Momentum, an explosion as such means that the TOTAL momentum of the system (all of the pieces) is conserved.
If they want to increase the money supply<span> in the economy it </span>will<span> buy securities. Conversely, if the they want to </span>decrease the money supply<span>, it </span>will<span> sell securities.</span>
Answer:
P = 147,75 W
Explanation:
A man whose mass is 59.1kg climbs up 30 steps of a stair each step is 25 cm high
Height at 30 steps , h=30×2.5= 7.5 m
Change in potential energy , =mgh=59.1×10×7.5 = 4432.5 J
So, Work done by the man , W= 4432.5J
Power used , P= 
P = 4432.5 /30
P = 147,75 W
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5.972 × 10^24 kg
it is the weight of earth
hope it is helpful to you