USA news on Youtube Dec 26 2018

rev up your engines, Scott Simpson says what do you think about modern v8s

Camaros and challengers are they worth the money, well I don't think any new car

is worth the money cuz they charge too much money for them, they are good

engines, you know if you're talking about Camaros and challengers, realize that

those are still old fashion designs those v8s, those aren't even overhead cams

those are pushrod engines and that pushrod technology has been around a

long time, they put on a lot of horsepower, they're pretty strong engines

now that said they're complete gas hogs cuz they're an old fashioned

pushrod engine that weighs a lot, old technology, they're gonna go through

gas like no tomorrow, and as for are they worth the money

that's the thing, you pay a lot of money for those things, as they age their

resale value goes down, I personally can't see that a lot of them are gonna

be collectors items because they're pretty much cookie cutter mass-produced

cars, you go way back and get a Dodge Challenger or hot charger those things

are worth a lot of money, but most of them got wrecked because they didn't

handle that well, so if there's any of them left

that are in original condition they're worth a lot of money, but these modern ones

the kind of cookie cutter like the Dodge Challenger, those hellcat engines, now

you can buy it what's called the hell crate engine, they now sell them like dodge

that they'll fit any of the older trucks from

the sixties and the seventies, they'll just bolt right in, so a lot of guys are doing

that their getting the old ones putting the new

engines in, they're good engines there's no arguing, Abe from an 83 says, if

I baby my engine can the timing belt go longer,

interesting question cuz changing the timing belt on some model cars cost a

fortune what wears out timing belts are two

things, one is the torque of the engine as you accelerate real fast the crank is

pulling the cams on the top and there's more stress and the other is just

flat-out age, their rubber base timing belts, as they age they crack they

stretch and they start bouncing around inside and the more vibration they have when

they bounce around of course more friction eventually they snap off, so

to some extent if you baby the engine and drive it normally, yes it could last

somewhat longer, if you have an interference engine I would just go by

straight time and mileage if it's got you know 80,000 miles or more on an

interference engine I'd change it, if it's more than six to eight years old I

change it, just because you don't want to ruin

an engine, but if you have like a Toyota with a non-interference engine, sometimes

I've seen those things with 250,000 miles and they've never been touched and they're

still going and since if it breaks it doesn't hurt anything, then you don't

care, nike see says Scotty is it worse to fix a CVT transmission

or should I get rid of it now, see how much the car is worth on the

market, see what it cost to fix it, you'll probably see that the cost of fixing it

is more than what the car is worth, and if that's the case and it still runs

somewhat, sell it and get rid of it, but that's it all depends on the year, how much money

you have invested in it, you know if you're really upside

down in the car, you might want to try to get it fixed, because if you can't

even sell it for what you owe on it, then you know you might decide, gee

well I'll get it fixed and try to drive until the wheels fall off, but if you can

get any amount of money for it now and it still runs halfway decent, definitely

get rid of it, Adrian Lopez says do you think a 1983

Datsun 280zx is a good car, they were great cars back in the day, you know that

was revolutionary sports cars the 240 260 280, they were just they say the bee's

knees for sports cars, a sports car that was fast, fun to drive, and it didn't

break down, like all the other sports cars did in those days, you got to realize

that's old what are we talking about now, 37 year old cars

those are old cars, if you're gonna get it as a toy go right ahead

just decide what you're looking at, what you're paying and what you get for the money

if it's restored and stuff and a mechanic like me checks it out and says

yeah they did a pretty good job restoring it, go right ahead, or if it

still runs at least maybe looks a little ragged, pay a little bit of money for it

or if it doesn't even run, then you gotta decide, do I want to put an engine to

fix this stuff in it, depends on the shape it's in, but they were solid

cars and they are collectible item so, play it by ear to see how much you're

gonna pay what you're gonna get for it and how far you want to go fixing them,

Moika says, what do you think about Alfa Romeos are they good cars what are you

thinking about them, I used to work on them all the time, people thought Fiat

were bad, Alfa Romeos broke even more and had

even more problems, Alfa Romeo pulled out of the United States decades ago, I

suppose they're trying to sell them here now, it was always a high-tech company

if you have an endless supply of money and you want to buy one of those new

alphas, sure they're fun to drive around you know they're real zippy little cars,

but value goes down fast, they have no resale value and they're typical Italian

cars, you know they're gonna fall apart as they age cuz that's just how those

things are, so if you never want to miss another one of my new car repair videos,

remember to ring that Bell!

For more infomation >> The Truth About Modern Muscle Cars in America - Duration: 5:06.

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Our WORLD TOUR! Time to CATCH UP with YOU! - Duration: 4:48.

Max : "First take!"

Jeremy : "I just realised I've been barefoot since this morning..."

It's winter and I'm barefoot...

Well it's been a while since we made a little video like this!

We just wanted to say hi to you all!

And tell you what we've been up to these past few months

For those who've been following us since the beginning

You probably noticed that we already released 6 episodes on our channel

The last one came out like a month ago!

We haven't forgotten about you guys

We are still working on the next episodes!

These episodes will all be very different from each other!

The episode 07 will take place on the west coast of the United States

To talk about the Zero Waste movement

After that where did we go?

Well we flew to India! A complete change of scenery!

We went there to talk about a very traditional medicine

that has existed for millennia in India

And we will conclude this journey with the episode 09

that we are currently writing and editing

We already filmed it but now we need to structure it

This episode will be about Oceans!

We went to Indonesia where we traveled for 6 weeks

There are 18000 islands, we haven't visited them all!

But we explored a little bit everywhere to meet with local communities

meet with expatriates who lead conservation programs

So we'll take you to all these islands

where we talk about the necessity to protect our oceans!

So loads of surprises waiting for you!

3 new episodes that we cannot wait to share with you all

Just be patient!

We wish you all a lovely end of the year 2018!

And see you soon for some new Chasing Tomorrow adventures!

- Shall we? - Let's go!

For more infomation >> Our WORLD TOUR! Time to CATCH UP with YOU! - Duration: 4:48.

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Cómo calcular la derivada del cociente de dos funciones trigonométricas - Duration: 4:17.

Derived from the quotient of two functions

trigonometrics. Here's what we're going to

to see here right now. Prestos and

willing to derive the following

function that is actually a conscious

of two functions and the two functions are

trigonometrics. Look, when we have

the conscious of two functions, function

"h" and function "g",

because we can say that its derivative is

the derivative of the numerator, the derivative

of the numerator by the denominator without

derive the numerator less without deriving

by the derivative of the denominator and the

denominator squared. Good, good, good.

Applying this to our equation

we have to h is one less x cosine. There

to remember here two things: one thing, that

for a function that is, for example, the

sine of x, its derivative to be equal to the

conseno of x. And if a function is the cosine

of x as its derivative will be equal to

less sinus of x.

We have to remember this. We have

that applies to this as well. Well, let's go

to solve our particular case.

The derivative of this function is going to be

equal to the numerator derivative. I am going to

to write this better. The derivative of

numerator, the derivative of the numerator is

this which is zero, minus the derivative of the

cosine of x, which will be less, less

sine of x, less, less sine of x. The cosine of x,

its derivative, is less sine of x, by sine

of x without drifting and less ... then the

underived numerator, one less cosine

of x, by the derived sine function. The derived sine function,

the derived sine function is cosine of x

divided by a square sine of x. Already

is. So let's operate, let's operate.

This will be equal to, this will be equal to

less for less +, breast for breast

then square sine of x

less... and this cosine multiplies what

is inside the parenthesis. Less cosine

of x, less square cosine of divided x

between square sine of x.

And this will in turn be equal to, for I stand by here,

I stand here, it will be equal to breast

square of x. Y less cosine of x more

square cosine of x (this minus sign

change the signs of what's inside

of the parenthesis) divided by sine

square of x.

Let's see, there are interesting things here.

Look. Square sinus of x plus square cosine of x,

Guys, what is this? This is 1.

x + square cosine of x is one, this plus

this is 1. So one less cosine

of x divided by square sine of x.

And you know what?

That's it. That's it. It's over, it's over

this exercise. Well

for more derivatives of this style,

next video friends and girlfriends.

Come on, see you soon!

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