Answer:
10 m/s/s or m/s²
Explanation:
Acceleration can be calculated by using the formula;
a = v - u/t
Where;
a = acceleration (m/s²)
v = final velocity (m/s)
u = initial velocity (m/s)
t = time (s)
In other terms, acceleration (a) can be represented as ∆V/t.
According to this question, a ball accelerates from 10 m/s (u) to 30 m/s (v) in 2 seconds. Hence, the acceleration of the ball is as follows:
a = 30 - 10/2
a = 20/2
a = 10m/s².
Answer: D. 2-1-3
Explanation:
Hemostasis can be define as a process which causes bleeding to stop when an injury occurs .This process is carried out through this 3 steps;
Vascular Spasm or Vasoconstriction : In this step, the body constrict the blood vessel to reduce the flow of blood to the affected area.
Formation of the Platelet Plug : In this step the body respond by activating platelets which encounters the affected area, becomes sticky and forms a plug that serves as a barrier against blood flow.
Coagulation: Involves the formation of a blood clot. It is a complex process that has Fibrin as it's end product. Fibrin is more like a glue that holds the platelets plug together.
The Fibrin clot gains strength and then dissolves when the walls of the affected blood vessels close and heals.
It allows things to go in and out of the cell. Plants have rigid cell walls which makes it harder for things to go in and out if the cell. Animal cells are softer so they can diffuse substances easier
Answer:
it depends on how to earth is rotated it's mostly because the earth rotates in a certain angle that cause sun to go through
