Which of the following does not serve a way to neutralizer the charge in a body? a. adding more protons to a positively charged body until the numbers of protons matches the number of electrons, b. adding a free electrons tp a positively charged body, c. bringing the charged body into contact with another body having an equal but opposite charge, d. allowing free electrons to escape from a negatively charged body

D. Allowing free electrons to escape from a negatively charged body

Explanation:

In order to neutralize a charge, an equal and opposite charge must be added or brought in contact with it.

From the options provided, only D is wrong.

Allowing free electrons to escape from a negatively charged body will cause the body to be positively charged. In such a body, the number of positively charged particles will be more. A neutralized atom or neutral atom has equal amount of positive and negative charges.

The way which does not neutralizes the body charge by adding more protons to a positive charged body until proton number matches with number of electrons.

Option A

Explanation:

In a positively charge medium or body, there is an excess amount of proton in it, in order to neutralize those charge with excess of proton, excess of free electrons or bring the body to an oppositely charged body or even allowing free electrons to escape from the negative charged body will be sufficient. Therefore, adding proton will not neutralize the positive charged body but will make it more positive in charge.

d₁ = displacement of tern from arctic to antarctic = 11000 miles

d₂ = displacement of tern from antarctic to arctic =   - 11000 miles

d = total displacement for the journey

total displacement for the journey is given as

d = d₁ + d₂

d = 11000 + (-11000)

d = 0 miles

t₁ = time of travel from arctic to antarctic = 3 months = 3 x 30 days = 90 days

t₂ = time of travel from antarctic to arctic = 3 months = 3 x 30 days = 90 days

t = total time of travel

total time of travel is given as

t = t₁ + t₂

t = 90 + 90

t = 180 days

average velocity is given as

average velocity = total displacement/ total time

v = d/t

v = 0/180

v = 0 miles/day

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft