We know, acceleration = change in velocity / Time
a = 20 - 0 / 3.5
a = 20 / 3.5
a = 5.7 m/s2
In short, Your Answer would be Option B
Hope this helps!
Explanation:
Mass ratio C : H : N = 27.3 : 9.10 : 63.6
Mole ratio C : H : N = 27.3/12: 9.10/1 : 63.6/14
( Divide the mass ratio by their molar masses to find the ratio between moles)
Mole ratio = 2.275 : 9.10 : 4.54
= 2.275/2.275 : 9.10/2.275 : 4.54/2.275
= 1 : 4 : 2
Answer is CH4N2
Answer: how much mass is in a certain amount of space
Explanation: density is g/mL; therefore it’s the mass (g) in a certain amount of space (mL)
Answer:
The correct option is a: Hg-183.
Explanation:
The alpha decay is given by:
Hence, if Polonium-191 decays by emitting an alpha particle we have:
Now, if Pb-187 also decays by emitting an alpha particle we have:
Therefore, the correct option is a: Hg-183.
I hope it helps you!
Hi,
Here's some advise, just go to Google, type in interesting facts about Robert Brown and a whole bunch come up, then you can pick the one you like and want. It's not hard, plus you can make your own decision instead of me picking out one that you might not like. Your welcome- Amber
