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Nadusha1986 [10]

3 years ago

9

Which terrestrial ecosystem or life zone produces the highest net primary productivity per year? a. temperate forest b. Savanna

c. tundra d. swamps and marshes e. extreme desert

1 answer:

horsena [70]3 years ago

8 0

a. hope this helps...

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Light incident on a Surface at an angle of 45° undergoes diffused reflection. At what angle will it reflect?

zhuklara [117]

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hodyreva [135]

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Below is an attachment containing the solution.

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Calculate the percentage increase in speed of the cyclist when the power output changes from 200 W to 300 W.

Rom4ik [11]

Answer:

<em>50%</em>

Explanation:

Given

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The temperature of a sample of water increases from 20°c to 46.6°c as it absorbs 5650 calories of heat what is the mass of the s

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3 years ago

You want the current amplitude through a inductor with an inductance of 4.70 mH (part of the circuitry for a radio receiver) to

goldenfox [79]

Answer:

f = 1.69*10^5 Hz

Explanation:

In order to calculate the frequency of the sinusoidal voltage, you use the following formula:

$V_L=\omega iL=2\pi f i L$ (1)

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i: current = 2.40mA = 2.40*10^-3 A

L: inductance = 4.70mH = 4.70*10^-3 H

f: frequency = ?

you solve the equation (1) for f and replace the values of the other parameters:

$f=\frac{V_L}{2\pi iL}=\frac{12.0V}{2\pi (2.4*10^{-3}A)(4.70*10^{-3}H)}=1.69*10^5Hz$

The frequency of the sinusoidal voltage is f

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3 years ago