yes it does it because the material cause it to refract and the stronger it is the more it will refract
Answer: Protons give the nucleus a positive charge.
Explanation:
Protons - Gives of positive charge
Neutrons - Gives of neutral charge (No charge)
Electrons - Gives off negitive charge
A. Decrease the rate of electrical flow
more resistance = lkess current
Answer:
θ = 61.3°
She must swim at an angle of 61.3°
Explanation:
Given;
Width of river = 100 m
Alicia speed in still water = 2.5m/s
Current of river = 1.2m/s
The angle for her to achieve her goal can be derived by the summation of velocity in the direction of the current.
Her speed in the opposite direction of the current must be able to neutralise the speed of the current;
2.5cosθ - 1.2 = 0
2.5cosθ = 1.2
cosθ = 1.2/2.5
θ = cosinverse(1.2/2.5)
θ = 61.3°