i'm not sure. I will find out for you and let you know as soon as possible.
1) 234 s, 6.18 km
The position of the car at time t is described as
where
is the velocity of the car
The position of the head of the train instead is given by
where
d = 1.30 km is the initial distance between the car and the head of the train
is the velocity of the train
The car overtakes the train when
Substituting and solving for t,
And the distance travelled by the car is
2) 27.5 s, 0.72 km
In this case, the train is travelling in opposite direction, so we can write
Again, we can use the same equation as before
And solving for t, we find
And the distance travelled by the car is
Slow down significantly before the curve in the road
When conducting a search to identify a text's credibility and reliability, you have to check the following characteristics:
- Sources: where the information is obtained and it is supposed to be true. It is said that you need at least three different sources that explain the same information for it to be validated.
- Is the article is current?: articles could change all the time, specially scientific ones because new discoveries can change what was discovered before, so it is important to check if the text you are reading is current or not, and if it is not, you need to check if something has changed during all those years.
<h3>Article's credibility</h3>
In this exercise, you have to present an article and describe the purpose of the source and if the article is current or not.
For example, let's select an article called "How using social media affects teenagers".
The purpose of the sources in this article is to demonstrate how social media affects teenagers using different surveys.
Check more information about sources here brainly.com/question/24708478
An ocean's salinity is affected by water and air temperature, the volume of water that flows into it, its age and the chemical composition of surrounding geological formations.<span> Because the effect of these factors varies over the area of an ocean, different levels are found within the ocean</span>
