Answer:
Answer the first 2 answers was incorrect
Answer : Visible light cannot penetrate the skin. Ultraviolet rays have a higher frequency and therefore have more energy.
Explanation:
What did your lab consist of?
It could be.. -the fall falling
-letting the ball go down the slide
-Kara went down the slide
-a rubber band was shot
-a gun was shot
-when the balloon filled with water exploded
-when the bomb exploded.
-Susan let herself drop off the fifty story building to the floor.
They're all examples of potential energy going on to kinetic energy.
Evaporation is the process of converting a liquid into vapour in chemistry. The intermolecular force is required to prevent oil from evaporating at room temperature, as stated in the above sentence, Those preventing oil from evaporating at normal temperature.
<h3>What exactly is intermolecular force?</h3>
Intermolecular forces (IMF) are the attracting and repulsive forces that exist between a substance's molecules. These forces function as a bridge between individual molecules of a substance. An intermolecular force is an attractive force that exists between the positive (or protons) components of one molecule and the negative (or electrons) components of another molecule. This force influences the physical and chemical properties of a substance. The boiling point of a substance is proportional to the strength of its intermolecular forces; the higher the boiling point, the stronger the intermolecular forces. We can compare the strengths of intermolecular forces by comparing the boiling points of different substances.
To know more about force visit:
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Answer:
V = 8.34m/s
Explanation:
Given that
1/2ke^2 = 1/2mv^2 ......1
Where e = 3.75cm = (3.75/100)m
e = 0.0375m
K = 500 N/m
m = 10g = 10/1000
= 0.01kg
Substitute the values into equation 1
0.5×500×(0.0375)^2 = 0.5×0.01×v^2
250×0.001395 = 0.005v^2
0.348 = 0.005v^2
v^2 = 0.348/0.005
v^2 = 69.6
V = √69.6
V = 8.34m/s
The ball launches at the speed of V = 8.34m/s
