B. Chemical change,new substances were formed
Answer:
His results gave the first evidence that atoms were made up of smaller particles.
The appropriate response is the revolution of the Earth around the Sun. For instance, the Earth finishes one turn about its hub about at regular intervals, yet it finishes one revolution around the Sun about each 365 days. Anyway, the fundamental motivation behind why the planets spin around, or circle, the Sun, is that the gravity of the Sun keeps them in their circles.
Answer:
The current on the water layer = 1.64×10^-3A
Explanation:
Let's assume that the radius given for the string originates from the centre of the string. The equation for determining the current in the water layer is given by:
I = V × pi[(Rwater + Rstring)^2 - (Rstring)^2/ ( Resitivity × L)
I =[ 166×10^6 ×3.142[(0.519×10^-4) + (2.15×10^-3])^2 - ( 2.15×10^-3)^2] / ( 183 × 831)
I =[ 521572000(4.848×10^6)- 4.623×10^-6]/ 154566
I = 252.83 -(4.623×10^-6)/ 154566
I = 252.83/154566
I = 1.64× 10^-3A