8. Cart 1 with mass of 2kg moving at +6m/s collides with cart 2 with a mass of 1kg,
2 answers:
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Complete Question
In the year 1178, five monks at Canterbury Cathedral in England observed what appeared to be an asteroid colliding with the moon, causing a red glow in and around it. It is hypothesized that this event created the crater Giordano Bruno, which is right on the edge of the area we can usually see from Earth.
How long after the asteroid hit the Moon,which is away ,would the light first arrive on the earth in seconds
Answer:
The time it would take is
Explanation:
The objective of this question is to obtain the time the light would arrive earth
We are told that the distance from moon to earth is
Now generally time is mathematically represented as
The c here is the speed of light which has a value of
Now substituting values
Answer:
2:1
Explanation:
It is given that,
The diameter of a white blood cell is 12 micrometers
The diameter of white blood cell according to a model is 24 micrometers.
We need to find the ratio of model size to actual size. It can be done as follows :
Hence, the ratio of model size to actual size is 2:1.