Ionic bond.
In the ionic bond one atom loses one or more electrons, leaving the atom with positive charge, and the other atom accepts those electrons standing with negative charge.
A and C because GMO's can give people a large rash
Answer:
Explanation:
Let m be the mass of each car
mass of three cars = 3m
Kinetic energy of 3 coupled cars = 1/2 x 3m x 28²
= 1176 m
mass of 4 coupled cars = 4m
Its velocity v = 3m x 28 / 4m ( using conservation of momentum law )
= 21 m /s
Kinetic energy of 4m mass
= 1/2 x 4m x 21²
= 882 m
Loss of energy
= 1176 m - 882 m = 294 m
percentage of loss
=( 294 / 1176 ) x 100
= 25 %
This energy appears in the form of sound , heat etc on collision .
Answer:
B
The plastic ball require lesser force than the iron ball
