Answer:
The correct option is (C).
Explanation:
Electric current can be direct or alternating.
The direct current flows only in one direction. It is unidirectional.
The alternating current or an C current reverse its direction periodically.
So, the correct statement regarding the alternating current is (c) i.e. Electrons reverse direction periodically.
Answer: 99.64 nm (≅ 100 nm)
Explanation: In order to explain this problem we have to obtain destructive inteference from two waves that reflect in the film and lens surface so both waves have a λ/2 shift then we have to get a difference path (2L) equal to an odd number of the half wavelegth.
Then we have the following expression:
L=(m+1/2)* λ/(2*n2); where n2 is the refractive index of the coating
for m=0 we have the minimum thickness for the coating
L=λ/(4*n2)=99.64 nm (≅ 100 nm)
Chloroquine Phosphate<span> is the phosphate salt of </span>chloroquine<span>, a </span>quinoline<span> compound with antimalarial and anti-inflammatory properties. </span>Chloroquine<span> is the most widely used drug against malaria, except for those cases caused by </span>chloroquine<span> resistant Plasmodium falciparum. Although the mechanism of action is not fully understood, </span>chloroquine<span>is shown to inhibit the parasitic enzyme heme polymerase that converts the toxic heme into non-toxic hemazoin, thereby resulting in the accumulation of toxic heme within the parasite. </span>Chloroquine<span> may also interfere with the biosynthesis of nucleic acids.</span>
This is true - by having special features, newspapers and news stations can get a very specific and very targeted audience to listen to them or red their newspaper because they know that certain target audience will buy it just for the special feature. This can backfire, however.
Answer:
Potential energy = mass × gravity × height
= m × g × h
mass = 5 kg
height = 4m
g= 10m/s²
Potential energy = 5 × 10 × 4
= 200Joules
Hope this helps.
