Answer:
Explanation:
Tommy's misconception in the problem below, is that his expression of the shaded area is the shaded area / non-shaded area, when the fraction for the shaded area should be the shaded area / total area
<span>Comets are made of ices, such as water, carbon dioxide, ammonia and methane, mixed with dust. These materials came from the time when the Solar System was formed.
A comet is a small object made of ice and dust that orbits the Sun and foems a coma as it approaches the Sun.
Hope this helped ☺</span>
Answer:
b) job experiences; degrees
Explanation:
In recent times, the employers tend to require job experience and degrees from the people that apply for jobs. The reason for this is that the economy is extremely competitive, so the employers try to get people that are already qualified for the job, will not need training for it, and that can contribute directly. While this is good for the companies and their economic interests, it is actually very bad for the young people that try to find job, as they are required to have experience, but rarely who employs them so that they can gain that experience, sot he percentage of unemployed young people is on the rise unfortunately.
Answer:
X has travelled 4 times as far as Y
X is moving 2 times as fast as Y
Explanation:
Because x=1/2at²(get rid of the first portion of x=vt+1/2at² because initial v is 0 which multiplies to 0). If the acceleration is set to for example 10 (keep this constant for both X and Y) and we use t=1 and t=2 for time (as the time travelled of X is twice that of Y). Plugging this into the equation, at t=1, x=4. At t=2, x=20. 20 is four times greater than 5, so X has travelled 4 times as far as Y.
To find the difference in speed between the two objects, use the equation
. Since the initial velocity is 0, that part can just be removed from the equation. With v=at, it is easy to see that if the time plugged in is twice for one than the other (and the acceleration is the same for both), the final result will be twice of the other as well. For example: If the acceleration is 10 again for both, then v=10t. If t is 1, the velocity is 10. If t is 2, the velocity is 20.