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3 years ago

according to many anthropologists a land brigade during the ice age allowing between which two countries

Physics

2 answers:

Jet001 [13]3 years ago

5 0

Continents: North America and Asia
Countries: Canada and Siberia, or Alaska (United States) and Siberia

ioda3 years ago

4 0

Well first of all, I think you're referring to the theory of the land "bridge",
not 'brigade'.

The main problem with this question is that during the Ice Age,
there were no countries, so there are no names to answer with.

The suspected land bridge spanned the expanse of open water
that would come to be called the 'Bering Strait' millions of years
later, after the bridge was long gone. Its ends would have been
located on land in different parts of what would come to be known
as Mother Russia far in the future. And even later, after another
couple hundred years, one of those ends would cease to be part
of Russia and would become part of the USA. But as I said earlier,
during the time that the land bridge existed, there were no countries.

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The vertical force f acts downward at A on the two membered frames. Determine the magnitude of the two components of F directed

galben [10]

Answer:

The magnitude will be "353.5 N". A further solution is given below.

Explanation:

The given values is:

F = 500 N

According to the question,

In ΔABC,

⇒ $\angle BCA = (90-30)$

⇒ $=60^{\circ}$

then,

⇒ $\angle BAC=(180-45-60)$

⇒ $=75^{\circ}$

Now,

The corresponding angle will be:

⇒ $\angle FAC=60^{\circ}$

⇒ $\angle FAB=70+60$

⇒ $=135^{\circ}$

Aspect of F across the AC arm will be:

= $F\times cos(60)$

On putting the values of F, we get

= $500\times (.5)$

= $200 \ Newton$

Component F along the AC (in magnitude) will be:

= $F\times cos(135)$

= $500\times (-.707)$

= $-353.5 \ N \$

4 0

2 years ago

Which of the following is not a characteristic of major depressive disorder?

Alex787 [66]

D chest tightness

I experienced these the past few days...

but hoped I helped ^_^

6 0

2 years ago

Read 2 more answers

A small block of mass m on a horizontal frictionless surface is attached to a horizontal spring that has force constant k. The b

Rashid [163]

Answer:

$v_{max} = |d|\cdot \sqrt{\frac{k}{m} }$

Explanation:

The maximum speed of the block occurs when spring has no deformation, that is, there is no elastic potential energy, which can be remarked from appropriate application of the Principle of Energy Conservation:

$\frac{1}{2}\cdot k \cdot d^{2} = \frac{1}{2}\cdot m \cdot v^{2}$