Metals in general, are good heat conductors
Answer:False
Explanation:
The given statement is false
because the sine ratio is the ratio formed by the side opposite the acute angle to the hypotenuse
The answer is D, it increases the susceptibility to infections.
The closure temperature represents the point when isotopes are no longer free to move out of a crystal lattice.
Answer: Option C
<u>Explanation:</u>
The closure temperature can also be termed as blocking temperature. It is mostly used in radiometric dating. As the temperature decreases, below a certain point the isotopes may get freeze in their lattice positions. And there may be slowing of diffusion.
At the closure temperature, that rate of diffusion will be zero as the isotopes will be no longer free to move out of crystal lattice. So, this is termed as closure or blocking temperature. As the isotopes loose their ability to move, their concentration will remain fixed in their position leading to measurement of radiation dating.
Answer:
Explanation:
Time = (distance) / (average speed)
Time = (4,700 km) / (790 km/hr) = 5.9494 hours (rounded)
= 5hrs 56min 58 sec (rounded)
(4,700 km) / (1.609344 km/mile) = 2,920 miles
Speed = (distance covered) / (time to cover the distance)
(2,929 miles) / 5.9494 hours) = 491 miles per hour