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3 years ago

The part of earth where all living things are found is called the

Physics

1 answer:

Amanda [17]3 years ago

5 0

Answer:

Hey Dude....

Explanation:

This is ur answer.....

The biosphere is made up of the parts of Earth where life exists. The biosphere extends from the deepest root systems of trees to the dark environment of ocean trenches, to lush rain forests and high mountaintops.

Hope it helps!

Brainliest pls!

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On a distant planet a freely falling object has an acceleration of 20m/s. what vertical distance will an object dropped from res

AveGali [126]

Use s = ut + 1/2 at^2, so

s = 0 + 1/2 x20 x 1.8 x 1.8

s = 32.4 m.

3 0

3 years ago

A young man exerted a force of 9,000 N on a stalled car but was unable to move it. How much work was done?

olasank [31]

W=F*s
W=9000*0
W=0
W:Work
F:Force
s:Distance

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3 years ago

A carbon rod with a radius of 1.9 mm is used to make a resistor. What length of the carbon rod should be used to make a 3.7 Ω re

vladimir2022 [97]

Answer:

Length = 2.32 m

Explanation:

Let the length required be 'L'.

Given:

Resistance of the resistor (R) = 3.7 Ω

Radius of the rod (r) = 1.9 mm = 0.0019 m [1 mm = 0.001 m]

Resistivity of the material of rod (ρ) = $1.8\times 10^{-5}\ \Omega\cdot m$

First, let us find the area of the circular rod.

Area is given as:

$A=\pi r^2=3.14\times (0.0019)^2=1.13\times 10^{-5}\ m^2$

Now, the resistance of the material is given by the formula:

$R=\rho( \frac{L}{A})$

Express this in terms of 'L'. This gives,

$\rho\times L=R\times A\\\\L=\frac{R\times A}{\rho}$

Now, plug in the given values and solve for length 'L'. This gives,

$L=\frac{3.7\ \Omega\times 1.13\times 10^{-5}\ m^2}{1.8\times 10^{-5}\ \Omega\cdot m}\\\\L=\frac{4.181}{1.8}=2.32\ m$

Therefore, the length of the material required to make a resistor of 3.7 Ω is 2.32 m.

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3 years ago

4) The object that changes its position relative to a fixed point with time is called ..

mariarad [96]

Hold on lemme get the link for you

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3 years ago

What type of energy is involved when a river moves sediment and erodes its banks?

ziro4ka [17]

First question: The type of energy involved when a river moves sediment and erodes its banks is: option d. Kinetic energy. Kinetic energy is the energy associated with motion. A body (in this case the water) that moves has an energy associated with its motion that is proportional to the speed (exactly to the square of the speed). When the water collides with the banks it is the kinetic energy of the river that erodes it Second question: the answer is the option d. As gravity pulls water down a slope potential energy changes to knietic energy. This is the, water loses altitude and gains velocity. The potential energy. which is proportional to the height, decreases and the kinetic energy, which is proportional to the square of the speed, increases.

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3 years ago