Answer:
11.11 s
Explanation:
Given:
u = 80 km/h = 22.22 m/s
v = 160 km/h = 44.44 m/s
a = 2.0 m/s²
Find: t
v = u + at
44.44 m/s = 22.22 m/s + (2.0 m/s²) t
t = 11.11 s
b. orbital
c. pudding
d. orb
She can monitor her practice run times to see if they are decreasing.
Answer: a
Explanation:
O 11
O 12
O
13
O 31
Answer:
number of neutrons = 13.
Explanation:
Each element is uniquely and completely identified by its Atomic Number. This is the number of protons in the nucleus, which is equal to the number of electrons in the neutral atom.The Atomic Number of Magnesium is 12.An atom’s Mass Number is the number of protons plus the number of neutrons in its nucleus.For Mg-25 the Mass Number is 25.So 25 = (number of protons) + (number of neutrons)= 12 + (number of neutrons)