The answer is A,B,C that apply. I believe this is the answer i hope this helps have a good day.
Answer:
pretty sure its B if it isnt im so so sorry
Explanation:
I formulate a hypothesis based on their observations about what occurs when both the rock and the wood are submerged in water.
<h3 /><h3>What is density?</h3>
Density is defined as the mass per unit volume. It is an important parameter in order to understand the fluid and its properties. Its unit is kg/m³.
The mass and density relation is given as
mass = density × volume
I study if the volume or density of items determines whether solid objects float or sink in water in this scientific inquiry I did the experiment of density, mass, and volume using a rock and a standard-shaped piece of wood.
It is critical that the chosen piece of wood is larger than the rock and that the rock be tiny enough to fit inside the measuring cylinder. I see both the rock and a chunk of wood.
Hence I formulate a hypothesis based on their observations about what occurs when both the rock and the wood are submerged in water.
To learn more about the density refers to the link;
brainly.com/question/952755
Answer:
Total displacement 155 m
Explanation:
From the question, the formula to apply will be that of cosine rule where:
where
a= 43 m , b=130m and c =? , <C=28° + 90° =118°
Substituting values in the equation as;
Answer:
λ = h/p
<u>
</u>
This energy is equivalent to E=150.44eV
Explanation:
<u>de Broglie Equation:</u>
λ = h/p
h=6.63×10-34 m2 kg / s Planck's constant
so: p=h/λ
On the other hand, an atomic distance, an angstrom, is equal:
, λ should be similar to this distance.
<u>Kinetics Energy of a electron, m=9.11×10−31 kg</u>
<u>
</u>
<u>Number of volts needed to accelerate that electron from rest to this energy:</u>
So, this energy is equivalent to E=150.44eV
This high-voltage device is called: particles accelerator
