Answer:
(A) Strain = 0.0012
(b) Stress
(c) Young's modulus
Explanation:
Mass of the rock m = 75 kg
So weight of the rock
Length of the rope l = 18 m
Diameter of the rope d = 11 mm
Change in length of rope
So radius r = 5.5 mm = 0.0055 m
Cross sectional area
(a) Strain is equal to ratio change in length to original length
So strain
(b) Stress
(c) Young's modulus is equal to ratio of stress and strain
So young's modulus
Answer:
I = 18 x 10⁻⁹ A = 18 nA
Explanation:
The current is defined as the flow of charge per unit time. Therefore,
I = q/t
where,
I = Average Current passing through nerve cell
q = Total flow of charges through nerve cell
t = time period of flow of charges
Here, in our case:
I = ?
q = (9 pC)(1 x 10⁻¹² C/1 pC) = 9 x 10⁻¹² C
t = (0.5 ms)(1 x 10⁻³ s/1 ms) = 5 x 10⁻⁴ s
Therefore,
I = (9 x 10⁻¹² C)/(5 x 10⁻⁴ s)
<u>I = 18 x 10⁻⁹ A = 18 nA</u>
Answer: Acids turn the indicator red, pink, orange, and yellow, while bases turn it green, blue, and purple.
I do not think that their is energy in space because, everything is floats because of gravity. So it's matter which takes its place and, gravitation !!! Hope this helps