<span>The 80 ml solution has (.04)(80) ml of the medicine, or 3.3 ml of medicine.The pharmacist adds V ml of 7% solution, or .07V ml of medicine. The total amoune of medicine is (.07V + 3.2) mg.
The total volume of solution is (V + 80) ml, so
(.07V + 3.2) / (V + 80) = .05. Solve for V.</span>
Answer:
The temperature of the cold water is lower than the warm one. So, when we put the hand in the warm from the cold water, our hand will absorb heat, causing the hand to feel hot. Thus, we can conclude that the more heat it absorbs, the more hotter it is. Whereas the more heat it releases, the colder it is.
<span>The correct answer is because there are strong adhesive forces exist between glass and the water molecules. They're not as strong as let's say glue or similar adhesives, but are good and water connected to glass has bigger adhesivity then if it was inside of a wooden cup for example or a bowl.</span>
Answer:
conduction
Explanation:
Heat conduction is the transfer of internal thermal energy by the collisions of microscopic particles and movement of electrons within a body. The microscopic particles in the heat conduction can be molecules, atoms, and electrons(Science direct).
From the statement above, heat is transferred via conduction when the particles in a body collide with each other. The heat energy gradually travels through the entire length of the material(initially found to exhibit variation in temperature with length) causing an increase in temperature starting at the part of the rod directly exposed to the heat source until the temperature becomes uniform throughout the rod.
