Answer:
(a) The spacing of the fringes will remain unchanged if there is a change in the width of the slits but no change in the centers' distance.
(b) However, if the slits are made to be broader, wave interference will create less contrast. There will be a reduction in the intensity of the bright fringes.
Explanation:
The equation for the double slit experiment is shown below:
mλ = dsinθ
Thus: (a) The spacing of the fringes will remain unchanged if there is a change in the width of the slits but no change in the centers' distance.
(b) However, if the slits are made to be broader, wave interference will create less contrast. There will be a reduction in the intensity of the bright fringes.
Answer:
Explanation:
q₁ = 8 x 10⁻⁶ C , q₂ = 3.5 x 10⁻⁶ C , q₃ = -2.5 x 10⁻⁶ C
Force between charge = 9 x 10⁹ x q₁ q₂ / d²
Force on q₁ due to q₂
= 9 x 10⁹ x 8 x 10⁻⁶ x 3.5 x 10⁻⁶ /( .10 )²
= 25.2 N . This force will be negative as it will point towards left ( q₂ will repel q₁ )
Force on q₁ due to q₃
= 9 x 10⁹ x 8 x 10⁻⁶ x 2.5 x 10⁻⁶ /( .15 )²
= 8 N . This force will be negative as it will point towards left ( q₃ will attract q₁ )
Net force = 25.2 N - 8 N
= 17.2 N .
Answer:
Letter D is not a reason to warm up.
The best answer would be:
B. Epi pen
Here is more about it:
An epi pen injects epinephrine into the body to counteract the effects of an allergic reaction. Epinephrine helps narrow blood vessels and open up the airways. This can be used for food allergies, insect bites, and some other allergens. It is very effective and immediately works, but it is short-lived, so seeking medical attention after is still needed.
Answer:
The answer is B, although technically that is an eclipse.