EPE= 0.5 * spring constant * (extension)^2
Spring constant=EPE/0.5*extension^2
5J/0.5*0.5^2
=40N/m
Atomic number: 6 / the atomic number will always be the amount of electrons an element has
Element: Carbon (C)
Mass: 13 / you can find the mass by adding the protons and neutrons together
Charge: 0 or neutral / if an element has the same number of protons and electrons it will be a neutral charge
Isotope: Carbon-13 / all you do is take the element name and the mass and write the isotope like I did above
I hope this help! If you have any questions feel free to ask
Answer:
3.50 m/s^2
Explanation:
the race is of 100 m.
time after which Marge crosses the finish line after t= 10.8 sec
time take by her to attain maximum speed t_o= 2.20 sec
a=
we know that
s= ut +1/2at^2
100= v
put a= here t_o= 2.20 sec
v= 7.72 m/s
now Marge acceleration a= = 3.50 m/s^2
Answer:
2g
Explanation:
A half-life means after a certain amount of time, half of that substance will be gone/changed after that time.
So, we divide the 16g sample in half 3 times.
16 ÷ 2 = 8
8 ÷ 2 = 4
4 ÷ 2 = 2
There will be 2g of the radioactive sample remaining after three half lives.
(hope this helps can i plz have brainlist :D hehe)