Answer:
The index of refraction of quartz for violet light is 1.47.
Explanation:
It is given that, a narrow beam of white light is incident on a sheet of quartz.
The beam disperses in the quartz, with red light at an angle, 
wrt to the normal and violet light traveling at an angle of 
The index of refraction of quartz for red light is 1.45.
We need to find the index of refraction of quartz for violet light.
Using Snell's law of red light as follows :
Here,
is the refractive index of air
is the angle of incidence
We can find the value of angle of incidence as follows :
Now again using Snell's law for violet light as follows :
So, the index of refraction of quartz for violet light is 1.47.
Answer:
24m/s
Explanation:
here also use 2nd eq of motion
then we use our answer
1. BaCl2+K2SO4⇒BaSO4+KCl
2. Na+FeCl3⇒Fe+NaCl
<h3>Further explanation</h3>
Given
Word equation
Required
Skeleton equation
Solution
A chemical reaction can be expressed in terms of:
- words equation
- the skeleton equation
- balanced equation
The skeleton equation is still in unbalanced form
So only chemical formulas of reactants and products and the relative amounts of the reactants and products are not included
For example :
• word equation
Ethane + Oxygen ⇒ Carbon dioxide + Water
• skeleton equation
C₂H₆ + O₂ ⇒ CO₂ + H₂O
• balanced equation
2C₂H₆ + 7O₂ ⇒ 4CO₂ + 6H₂O
1.
word equation
barium chloride ____ + potassium sulfate ____ → barium sulfate _____ + potassium chloride _____
skeleton equation
BaCl2+K2SO4⇒BaSO4+KCl
2.
word equation
sodium+iron(III) chloride→iron+sodium chloride
skeleton equation
Na+FeCl3⇒Fe+NaCl
Answer:
Explanation:
Convert the mass to kg:
375g = 375/1000kg = 0.375kg
F = ma
-20 = 0.375a
a = -20/0.375
a = -53
The object is accelerating at 53m/s/s backwards assuming that the forward motion is positive.
