Their atomic numbers are all the same, because they all have the same number of protons. But their atomic weights are different, because they have different numbers of neutrons.
Answer:
Explanation:
Given:
- Distance from the shore,
- distance of house from the shore,
- speed of rowing,
- speed of walking,
<em>For the least amount of time to reach the house one must row at the nearest point on the shore and then walk from there.</em>
<u>Now the time taken to reach the shore:</u>
<u>Time taken in walking to house from the shore:</u>
<u>Therefore total time taken:</u>
Answer:
Explanation:
In an experimental research, the control group is the group that serves as the neutral group that is not given any form of treatment and serves as the group in which the experimental groups are firstly compared to. Thus, <u>the control group in the question described is the Third group</u>.
While experimental groups are the groups that receive treatments required to make an inference from the experiment. From this description, <u>it can be deduced that the First and the Second group are the experimental groups.</u>
Answer:
Explanation:
1. 
= 
* cos
⇒ 16*cos32 ≈ 13.6 m/s (13.56)
2. 
= * sin ⇒ 16* sin32 ≈ 9.4 m/s
3. 
= 
= 
(the g (gravity) depends on the country but i'll take the average g which is 9.2m/s^2)
≈ 3.6677+1.5 ≈ 5.2m
4. 
= 
=
≈ 23.5m (23.47)
5. -
answer 4 could be wrong, not certain about that one and i don't know 5
