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3 years ago

What are fossil fuels, as organic compounds, made from?

Physics

2 answers:

LiRa [457]3 years ago

6 0

Answer: A hydrocarbon

Explanation:

In physics, a material, substance or fuel that contains carbon and hydrogen and usually other elements such as nitrogen, sulfur and oxygen are organic compounds.

belka [17]3 years ago

6 0

Answer:

hydrocarbons

Explanation:

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The two sleds shown below are about to collide. If they stick together in the collision, what will happen after the collision? (

zhannawk [14.2K]

Answer:

B. The two sleds will move to the right.

Explanation:

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3 years ago

A rear window defroster consists of a long, flat wire bonded to the inside surface of the window. When current passes through th

GenaCL600 [577]

Answer:

$\rho=1.8\times 10^{-8}\Omega.m$

Explanation:

Given:

width of the wire, $w=1.8\ mm=1.8\times 10^{-3}\ m$

thickness of the flat wire, $d=0.12\ mm=1.2\times 10^{-4}$

length of the wire, $l=12\ m$

voltage across the wire, $V=12\ V$

current through the wire, $I=12\ A$

Now the net resistance of the wire:

using ohm's law

$R=\frac{V}{I}$

$R=\frac{12}{12}$

$R=1\ \Omega$

We have the relation between the resistivity and the resistance as:

$R=\rho.\frac{l}{a}$

where:

a = cross sectional area of the wire

$\rho =$ resistivity of the wire material

$1=\rho\times \frac{12}{1.8\times 10^{-3}\times 1.2\times 10^{-4}}$

$\rho=1.8\times 10^{-8}\Omega.m$

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4 years ago

If you're driving 55 MPH and you suddenly need to stop, how many feet will you travel before the car comes to a stop

lys-0071 [83]

ANSWER: 170 Feet
REASON: with good breaks and a dry road your car should stop and skip 170 feet, with perception and reaction time of stopping you should stop within 170 feet

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3 years ago

A mountain-climber friend with a mass of 74 kg ponders the idea of attaching a helium-filled balloon to himself to effectively r

bazaltina [42]

Answer:

$V=16.65 m^3$