Answer:
resultant force = 14 N ( East direction)
Explanation:
A =
√( (4*7)² + (4*7)² )
A = 39.6 N
B = 4 * 7
B = 28 N
C = 2 * 7
C = 14 N
∑ y forces = Ay - B = (4*7) - 28 = 0
∑ x forces = Ax - C = (4*7) - 14 = 14 N
so the resultant force = 14 N ( East direction)
Answer: 26.7 s
Explanation:
Given
Width of the river, = 0.2 km = 200 m
Speed of the rover, = 3 m/s
Speed of the boat, = 8 m/s
From the question, the boat would have to move westward. In moving westward, the angle will be
tan A = 3/8
tan A = 0.375
A = tan^-1(0.375)
A = 21°
Then, the velocity of the boat northward will be
v(north) = 8 cos 21
v(north) = 8 * 0.934
v(north) = 7.47 m/s
Therefore, the time taken would be
t = 200/7.47
t = 26.7 s
A multi-cellular organism is not an exact copy of its parents because the offspring shares genes of both the parents.
<u>Explanation:</u>
- For a multi-cellular organism to reproduce, they require two parents.
- Characteristics are inherited from both the parents. So, an offspring can't b an exact copy of either of its parents.
- When a unicellular organism reproduce, they make an exact copy of its parent as they originate from only one parent.
- Punnett diagram is used to determine what all traits as organism is supposed to inherit from its parents.
- Chromosomes carry the blueprint of life from one generation to another.
- There are 46 chromosomes with 23 inherited from each parents through the process of mitosis. These chromosome makes up 23 pairs all together.
Runner A speed is 3.81 meters per second
Runner b speed is 4.06 meters per second
This can be found by converting the minutes to entirely seconds and dividing the total distance ran by how many seconds they ran
it is a surface layered infection that is commonly found on soft tissue or within the nasal cavity.