First off, you need to review the formula for momentum:
Momentum = (mass) times (speed)
= (75 kg) x (18 m/s)
= 1,350 kg-m/s .
There it is. That's all there is to it.
Notice that you would have been sunk without knowing
the equation for momentum. It's pretty important. You
should memorize it. You'll need it again.
<span>It's continuous except for a pair of dark lines.
They are very close together in the yellow/orange section of the spectrum.</span>
Answer:
Hello There!
It is Speed.
Because in the question it is said that at which speed car is travelling.
Speed is a scalar quantity.
If it is velocity then first know this that it is a vector quantity.
It must include both magnitude and direction.
If it is velocity then it would be 40 mph east or west or north or south.
<h2>I hope it is helpful to you...</h2><h3>Cheers!_____________</h3>
Answer:
D
Explanation:
Whether endothermic or exothermic, for a reaction to be spontaneous, ∆G must be negative.
∆G=∆H-T∆S.
The values of temperature and entropy change can be determined when the values of enthalpy, entropy and temperature are known. When ∆G is zero, the reaction has attained equilibrium.
Reactants is a starting substance in a chemical reaction; (reactants appear on the left-hand side of a chemical equation).
Products is a substance produced in a chemical reaction; (products appear on the right-hand side of a chemical equation).
Limiting reactant is the reactant that has the smallest stoichiometric amount in a reactant mixture and consequently limits the amount of product in a chemical reaction.