23. Baking soda solution will be of most help.
24. Milk should be given.
25. Distilled water is the choice.
<h3><u>Explanation:</u></h3>
23. When someone is having acidity, it means the amount of hydrochloric acid in stomach has increased and this can lead to several problems and discomfort like heart burn and even esophageal reflux. This should be treated with basic solutions which will neutralize the acid. So baking soda is the most appropriate choice which will neutralize the hydrochloric acid forming carbon dioxide, sodium chloride and water.
24. As the child swallows acid, the problems he could face is burning of mucous membrane, severe pain and even stomach can be pierced by burning. These effects need separate treatment, but as a first aid, the child should be given milk as a choice as the acid should be diluted and the contact of acid with mucous membrane should be reduced.
25. Distilled water do have a pH nearest to 7 Because in the rain water, there's often mixture of different acids like sulphuric acid and nitric acid which comes from atmosphere and makes rain water acidic. Carbonated water is acidic due to carbonic acid. Well water and lake water are often basic due to aluminum and magnesium salts. But distilled water doesn't have any impurities.
Initial speed of Gazelle is along x direction and its value will be
also its initial height is given as
Part a)
now from kinematics along Y direction
as we know that
Part b)
distance moved horizontally
as we know that
now we will have
so it will lend at distance of 4 m.
Part c)
final velocity in vertical direction
so net speed will be
Answer:
a) Earth
Explanation:
When constructing an accurate scale model of the solar system on a football field with the Sun at one end and Neptune at the other, the planet closest to the center of the field would be Earth.
From the given options the earth is the closest planet to the center of the field. The center of the field can be considered as the sun. In reality we have mercury as the closest planet in our solar system.
The electric force between two charge objects is calculated through the Coulomb's law.
F = kq₁q₂/d²
The value of k is 9.0 x 10^9 Nm²/C² and the charge of proton is 1.602 x10^-19 C. Substituting the known values from the given,
2.30x10^-26 = (9.0 x 10^9 Nm²/C²)(1.602 x10^-19C)²/d²
The value of d is equal to 0.10 m.
It might slow down because it has to overcome friction