D.) Entropy
Entropy is the measure of disorder in the universe.
B. NaCl
All of the other answers contain a 2 or a number in general. Metals do not form covalent bonds. Alkali-halide salts are Ionic compounds. Ionic compounds form from bonding a metal and a non metal. Covalent bonds are formed by bonding non metals.
Heat does not rise or fall because it is an energy being transferred. It is the hot air which rises because colder air is denser than hotter air.
This is a tricky question I think so because the light hits the shirt and the shirt is a but transparent or its just a plain white shirt sorry if I did not answer your question in new to this ( ´ ▽ ` )ﾉ
In collision type of problems since momentum is always conserved
we can say
So here along with this equation we also required one more equation for the restitution coefficient
so above two equations are required to find the velocity after collision
here the change in velocity occurs due to the contact force while they contact in each other
so this is the impulse of collision while they are in contact with each other while in collision which changes the velocity of two colliding objects
