Field lines become straight and perpendicular because every point of circular loop the concentric circles become larger and larger as we move away from the wire.
Answer:
J.J. Thomson discovered <u><em>the electron</em></u> by experimenting with a Crookes, or cathode ray, tube. He demonstrated that cathode rays were negatively charged. In addition, he also studied positively charged particles in neon gas.
Explanation:
the answer is the underlined part of the answer section. I hoped this helped you a lot!! Study hard for whatever you are doing!!
Answer: b
Explanation: did the quiz got it right
Explanation:
Given that,
Mass of the cart, 
Mass of the cart 2,
Final speed of cart 2, 
Final speed of cart 1 is 0 as it comes to rest.
Let us assume that the initial velocity of the cart 2 is 0. So using the conservation of linear momentum as :

So, the initial velocity of the 1.0-kg cart is 0.9 m/s.