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VARVARA [1.3K]
3 years ago
12

What is Biomass? What is Biofuel? Please help me science students

Physics
1 answer:
kramer3 years ago
7 0

Answer:

Biomass-Total of mass of organisms in a given area/volume

Biofuel-A fuel directly from living matter.

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Communication with submerged submarines via radio waves is difficult because seawater is conductive and absorbselectromagnetic wa
FrozenT [24]

Answer:

D. 4000 km

Explanation:

f = Frequency of wave that is being transmitted = 76 Hz

\lambda = Wavelength of wave that is being transmitted

v = The velocity of electromagnetic waves through air = 3\times 10^8\ m/s

Velocity of a wave is given by

v=f\lambda\\\Rightarrow \lambda=\frac{v}{f}\\\Rightarrow \lambda=\frac{3\times 10^8}{76}\\\Rightarrow \lambda=3947368.42105\ m=3947.36842105 km\approx 4000\ km

Hence, the approximate wavelength of the waves is 4000 km

8 0
3 years ago
How does this pendulum demonstrate the law of conservation of energy?
muminat

Answer:

I'm sorry but I dont really know this answer

4 0
3 years ago
C) Explain relative velocity with examples.​
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Answer:

we encounter ocassion where one or more object move in the which is not stationary with respect to another example a boat is cross a river that is flowing at some rate of aeroplane encountring wind durning it motion

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3 years ago
Which of the following is the best reason to rest muscle groups between workouts?
vovangra [49]

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It allows the muscles time to heal.

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3 years ago
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In science, a hypothesis must be true.
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