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ExtremeBDS [4]
3 years ago
7

Modern nuclear bomb tests have created an extra high level of14C in our atmosphere. When future archaeologistsdate samples from

this era, without knowing of this testing, willtheir dates be too young? too old? correct? if correct,why?a. too oldb. too youngc. correct, since 14C form bomb tests is different fromthat produced naturallyd. correct, because modern biological materials do not gather14C from bomb tests
Physics
1 answer:
Ipatiy [6.2K]3 years ago
8 0

Answer:

Too old(Ex. if real time is 1000 then they estimate >1000)

Explanation:

This is because with time our planet may have a definite function which describes temperature.(Because of all the factors and global warming except nuclear bomb testing)

Now nuclear test on planet have significant effect on temperature rise.

Also 14°C rise in temperature is good one because of this.

If future archaeologists only consider that  uniform function as above mentioned then they estimate more time then the real one.

Thus too old is right answer.

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Two trains, each having a speed of 33 km/h, are headed at each other on the same straight track. A bird that can fly 60 km/h fli
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Answer:

66 km

Explanation:

Given that:

The speed of the two trains = 33 km/h

The speed of the bird = 60 km/h

The distance apart between the two trains =  60 km

From the given information, we are being told that the two trains are going at the same speed. Therefore, they will definitely collide at 30 km

We know that:

speed  of the train = distance traveled × time

Making the time t the subject of the formula:

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time = 30 km / 33 km/h

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Thus, the bird flying at a given speed of 60 km/h in a time of 0.909 / hr will cover a total distance of :

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Which category of energy originates in the process of photosynthesis?
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A ball falls for 9.0 s increasing its kinetic energy by 2700. If the force acting on the ball in 6.0 N find the following quanti
Ivanshal [37]

Answer:

Change in velocity:  88 m/s

Average velocity:  50 m/s

initial velocity:  5.9 m/s

Final velocity:  94 m/s

Initial momentum:  3.6 kg m/s

Final momentum: 58 kg m/s

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Acceleration = change in velocity / time

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Work = change in energy

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