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3 years ago

The earliest chinese writing was found on?

1 answer:

6 0

It was found on the luwian royal seals in the 14h century.source:Google hope this helps plss thabk me or mark my answer as brilliant.

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jake pushes a heavy box across a carpeted floor.Name three forces that act on the box, and explain how you know these are unbale

Maurinko [17]

Answer:

The forces acting on the heavy box pushed across the carpeted floor are:

- Gravitational force: this force acts on any object with mass, and it always acts downwards (towards the Earth's centre). its magnitude is

$W=mg$

where m is the mass of the box and g is the acceleration due to gravity.

- Normal force: this is the reaction force exerted by the floor on the box, N, and it acts upward, in the direction opposite to gravity. This force perfectly balances the force of gravity along the vertical direction.

- Applied force: this is the force due to the push applied by Jake, $F$ . It acts horizontally in the forward direction.

- Force of friction: this is a resistive force that acts in the opposite direction to the motion of the box, $F_f$ , and it is due to the contact between the microbumps present on the surface of the box and of the floor.

While the forces along the vertical direction are balanced, the forces along the horizontal direction are not, since the applied force is larger than the frictional force:

$F>F_f$

This means that the net force along the horizontal direction is non-zero:

$F_{net}=F-F_f > 0$

And according to Newton's second law of motion, this also means that the box has a non-zero acceleration along the horizontal direction:

$F_{net}=ma \rightarrow a=\frac{F_{net}}{m}>0$

4 0

4 years ago

Kent state university was the site in 1970 of which of the following events?.

kvv77 [185]

i don’t know but maybe 2980?

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3 years ago

What was the Dawes Plan and why did it falter in 1929

Sholpan [36]

<span>The Dawes Plan (1924) from the American Charles Dawes and represented with USA, UK, Italy, Belgium and France was to let Weimar Germany pay the damages it caused on World War I via Treaty of Versailles. The problem with the plan was that it was short-termed. On 1923, troops from Belgium stayed at Germany’s most industrial area, the Ruhr. The following year, the country fell into deep financial crisis. By 1924, the country was in dire financial straits and the plan to make the German economy stable was out of the plan.</span>

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3 years ago

Many high schools throughout the US have faced a serious shortage of math and science teachers. Many prospective teachers choose

OLEGan [10]

No, it does not illustrate scarcity because the need for math and science teachers is not unlimited. Scarcity is the situation that results from unlimited wants and limited resources. This is a temporary shortage of math and science teachers due to higher salaries elsewhere, not scarcity.

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3 years ago

Which invention was in use before the Second Industrial Revolution?

Firdavs [7]

The Answer Is "Reaper"

Hope This Help's

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3 years ago