Answer:
the seed of the sound in the air is 343.3 m/s
Explanation:
The computation of the speed of the sound in the air is shown below:
As we know that
Speed = Distance divided by Time
So, here speed be 515m
And, the time is 1.50 second
So, the speed of the sound is
= 515m divided by 1.50 seconds
= 343.3 m/s
hence, the speed of the sound in the air is 343.3 m/s
Answer:
1) Addition of a catalyst
2) To change the reaction rate of slope B to look like slope A, simply add a catalyst to speed up the rate of reaction, giving you a higher amount of products in a shorter amount of time (line A)
Explanation:
1 and 2)Two things can alter the rate of a reaction, either the addition of a catylist which will not alter the composition of the products or reactants, but will accelerate the reaction time, or an increase in temperature will also increase the rate at which a reaction will occur.
You could choose temperature also and have the same result, it's your choice both are correct, but catalyst is the easiest.
d final total energy of the systen
Answer:
The net force of engine on total mass of train is 35000 N
The net acceleration is 1.944 m/s²
I
The relationship between the mass of the celestial bodies relative strengths is that the bigger the planet the more gravity pulls you down for example compare Earth with a human, if a person jumps gravity pulls you down compare it to REAL LIFE you see how fast and hard you land but on Pluto or Mercury, there is no gravity just like on the moon that's why when see people on the moon jump, they seem to float. So the more mass or how much a planet can hold gravity brings you down faster and stronger than regular.