Answer:
358.9 (+/- 0.4) million years ago
Holocene Epoch, of the Quaternary Period
Devonian period
66 million years ago (prox)
521 million years ago
110,000 years ago
NW
North america became more cold when it moved NW
Explanation:
<span>The process of making alloys involves ( Heating ) pure metals to remove impurities. Then the pure metals are(mixed) with other components. </span><span>An </span>alloy<span> is a mixture of metals or a mixture of a metal and another element. </span>Alloys<span> are defined by a metallic bonding character.</span>
One reason is that when you have been out in the cold, your hands feet and exposed features of your face will take time to recover as the blood circulation improves and supplied warm blood to capillaries. So the relatively warm room you enter will not immediately feel warm until the blood has regained its normal circulation. Other factors are that windows are cooled from the outside and condensation forms on the inside because of moisture in the air. For this condensation to evaporate requires heat, which will be extracted from the room and the air near the windows will be cooled. The cold air will descend and form a draught at floor level and this will tend to make the room cooler.
The centripetal force is:
F = mv² / R
Where:
m: mass of the object
v: object speed
R: radius of the curve.
We have to:
m = 2000kg
v = 25 m / s
R = 80 meters.
Then the centripetal force acting on the vehicle is:
F = (2000kg * (25m / s) ²) / 80m
F = 15625 N
