<span> most common in coastal areas around the gulf of mexico is mostly by river
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Answer:
A
B

C

D

Explanation:
Considering the first question
From the question we are told that
The spring constant is 
The potential energy is 
Generally the potential energy stored in spring is mathematically represented as 
=>
=>
=>
Considering the second question
From the question we are told that
The mass of the dart is m = 0.050 kg
Generally from the law of energy conservation

=> 
=> 
Considering the third question
The height at which the dart was fired horizontally is 
Generally from the law of energy conservation

Here KE is kinetic energy of the dart which is mathematical represented as

=> 
=> 
=> 
Considering the fourth question
Generally the total time of flight of the dart is mathematically represented as

=> 
=> 
Generally the horizontal distance from the equilibrium position to the ground is mathematically represented as

=> 
=> 
Answer:
A quick way of describing density is to describe an object as heavy or light for its size. Pumice stone, unlike regular rock, does not sink in water because it has a low density. An ironwood branch is very dense and sinks in water.
Hope that helps. x
Answer:
0.00110616446408
Explanation:
r = Radius of sphere = 11 μm
V = Volume = 
= Density of pollen = 1000 kg/m³
q = Charge = − 0.550 fC
E = Electric field = 110 N/C
g = Acceleration due to gravity = 9.81 m/s²
Mass is given by

Force due to gravity is given by

Electric force is given by

The ratio is

The ratio is 0.00110616446408