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FinnZ [79.3K]
3 years ago
9

How much power is required to lift a 60 kg bed to the top of a 3 meter flight of stairs in 10 seconds?

Physics
1 answer:
Zigmanuir [339]3 years ago
8 0

Answer:

176.58Watts

Explanation:

Power= work done /time

Where mass(m)=60kg

Height (h) =3m

Time(s)=10s

Force of gravity = 9.81m/s^2

Power=mgh/t

Power= (60kg) * (9.81m/s^2) * (3m)/10s

Power= 176.58Watts

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How do I differentiate between final and initial velocity in Physics?​
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A certain quantity of steam has a temperature of 100.0 oC. To convert this steam into ice at 0.0 oC, energy in the form of heat
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Answer:

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Q=Q_1+Q_2+Q_3\\\Rightarrow Q=m(2.256\times 10^6)+m0.4186\times 10^6+m(0.3335\times 10^6)\\\Rightarrow Q=3008100m

The kinetic energy of the bullet will balance the heat

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