How many 50 mg tablets can be produced from 10 kg of ibuprofen?

2 × 10⁵

Explanation:

The total mass of the drug, ibuprofen = 10 kg

Kilograms and grams are related as:

1 kg = 1000 g

Also,

Grams and milligrams are related as:

1 g = 1000 mg

So,

1 kg = 10⁶ g

Mass of the drug, ibuprofen = 10 × 10⁶ mg = 10⁷ mg

Given, mass of tablet = 50 mg

So, number of tablets = total mass / Mass of 1 tablet = 10⁷ mg / 50 mg = 2 × 10⁵

Number of 50 mg tablets =  2 × 10⁵

answer: option c. i.e. electric current flowing “downhill” from the negative electrode to the positive electrode in a battery

explanation:

the water analogy to the circuits define the pipes (water flows) to the electric current. now, we know that the electric current flows from the positive terminal to the circuit (as shown in the diagram attached).

hence, option c is the correct answer.

the force on the thing and the distance the force moves the thing