3 years ago

Is a darter a consumer?

Physics

1 answer:

Readme [11.4K]3 years ago

5 0

Yes Darter eats plankton and mussels.

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Read 2 more answers

A toy rocket is launched straight up by using a spring. The rocket is initially pressed down on the spring so that the spring is

tigry1 [53]

Answer:

6.86 meters

Explanation:

Let the compression of the string be represented by x, and the height of projection of the toy rocket be represented by h.

So that;

x = 9 cm = 0.09 m

In its rest position (i.e before the launch), the spring has a stored potential energy which is given as;

PE = $\frac{1}{2}$ K $x^{2}$

= $\frac{1}{2}$ x 830 x $(0.09)^{2}$

= 415 x 0.0081

= 3.3615

The potential energy in the string = 3.36 Joules

Also,

PE = mgh

where: m is the mass, g is the gravitational force and h the height.

m = 50 g = 0.05 kg, g = 9.8 m $s^{-2}$

Thus,

PE = 0.05 x 9.8 x h

3.3615 = 0.05 x 9.8 x h

3.3615 = 0.49h

⇒ h = $\frac{3.3615}{0.49}$

= 6.8602

The height of the toy rocket would be 6.86 meters.

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