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Serga [27]
3 years ago
8

Why have fungi evolved mechanisms for dispersal of their spores

Physics
1 answer:
Tanzania [10]3 years ago
3 0

Not all fungi did that.  At one time, there were fungi that dispersed
their spores and fungi that did not disperse their spores. 

The fungi that did not disperse their spores produced very few
new fungi, and they aren't around any more.

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I'm not sure but I think it's 35-39

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Was he 200 m away and made the trip in 200 seconds?

If yes...
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How does a mathematical model help you understand the science concepts
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Radar is used to determine distances to various objects by measuring the round-trip time for an echo from the object. (a) How fa
zloy xaker [14]

Answer:

150000000000 m

0.0000005 seconds

33.33 ns

Explanation:

Speed of electromagnetic waves through vacuum = 3\times 10^8\ m/s

Echo time = 1000 seconds

Echo time is the time taken to reach the object and come back to the observer

Distance = Speed×Time

Distance=3\times 10^8\times \frac{1000}{2}=150000000000\ m

Venus is 150000000000 m away from Earth

Time = Distance / Speed

Time=\frac{75}{3\times 10^8}=0.00000025\ seconds

Echo time will be twice the time

Echo\ time=2\times 0.00000025=0.0000005\ seconds

The echo time will be 0.0000005 seconds

Difference in time = Difference in distance / Speed

\Delta t=\frac{\Delta d}{v}\\\Rightarrow \Delta t=\frac{10}{3\times 10^8}\\\Rightarrow \Delta=33.33\ ns

The accuracy by which I will be able to measure the echo time is 33.33 ns

5 0
3 years ago
A body is projected from the ground at an angle of 30° with the horizontal at an initial speed of 128 ft/s. Ignoring air frictio
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Answer

given,

v = 128 ft/s

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vertical component of velocity

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time taken to strike the ground

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v = u + at

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b) maximum height

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  h = 64 ft

c) range

R = v_x × time of flight

R = 110.85 × 4

R = 443.4 ft

4 0
3 years ago
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