They have a charge of zero because every atom starts of with the same number of electrons (which are negative) and protons(which are positive.)
These happens in till bonding happens, but the bond itself is zero. Zero just means that the bond has the same amount of positive and negative.
Answer:
3.7 N/kg
Explanation:
The gravitational strength refers to the amount of gravity acting per unit mass. Hence in this case,
Gravitational Strength = Weight / Mass
= 370 / 100
= <u>3</u><u>.</u><u>7</u><u>N</u><u>/</u><u>k</u><u>g</u>
Answer:
10.5 m/s
Explanation:
For the first chestnut:
y₀ = 10 m
v₀ = 0 m/s
a = -9.8 m/s²
y = y₀ + v₀ t + ½ at²
y = 10 + (0) t + ½ (-9.8) t²
y = 10 − 4.9t²
When y = 7.5:
7.5 = 10 − 4.9t²
t = 5/7
When y = 0:
0 = 10 − 4.9t²
t = 10/7
For the second chestnut:
y₀ = 10 m
y = 0 m
a = -9.8 m/s²
t = 10/7 s − 5/7 s = 5/7 s
y = y₀ + v₀ t + ½ at²
0 = 10 + v₀ (5/7) + ½ (-9.8) (5/7)²
0 = 10 + 5/7 v₀ − 2.5
v₀ = -10.5
The second chestnut must be thrown downwards at 10.5 m/s.
Answer:
SI is used in most places around the world, so our use of it allows scientists from disparate regions to use a single standard in communicating scientific data without vocabulary confusion