The answer would be...A: Stratigraphy
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Answer:
ionic
ionic
covalent
covalent (i think)
Explanation:
ionic= donate electrons (gain/lose)... (results in ions that have +/- charge, are no longer neutral)
covalent= share electrons
Answer:liquid water
Explanation:it turns into liquid water when it rains
Answer:
75 N
Explanation:
t = Time taken = 2 seconds
u = Initial velocity
v = Final velocity
s = Displacement = 30 m
a = Acceleration
![s=ut+\frac{1}{2}at^2\\\Rightarrow 30=0\times 2+\frac{1}{2}\times a\times 2^2\\\Rightarrow a=\frac{30\times 2}{2^2}\\\Rightarrow a=15\ m/s^2](https://tex.z-dn.net/?f=s%3Dut%2B%5Cfrac%7B1%7D%7B2%7Dat%5E2%5C%5C%5CRightarrow%2030%3D0%5Ctimes%202%2B%5Cfrac%7B1%7D%7B2%7D%5Ctimes%20a%5Ctimes%202%5E2%5C%5C%5CRightarrow%20a%3D%5Cfrac%7B30%5Ctimes%202%7D%7B2%5E2%7D%5C%5C%5CRightarrow%20a%3D15%5C%20m%2Fs%5E2)
The acceleration due to gravity on the planet is 15 m/s²
Force
F = ma
![F=5\times 15\\\Rightarrow F=75\ N](https://tex.z-dn.net/?f=F%3D5%5Ctimes%2015%5C%5C%5CRightarrow%20F%3D75%5C%20N)
The gravitational force exerted on the object near the planet’s surface is 75 N