Answer:
cd
Explanation:
image is formed due to reflected light rays and it is enlarged because image distance/ object distance = height of image/height of object
v>u so image is enlarged
Question 3
Explanation:
answer -A /A chemical reaction happens when substances break apart or combine to form one or more new substances. New substances form when bonds break and new bonds form. The chemical properties of the new substances are different from those of the original substances. ... Some chemical reactions produce a precipitate.
answer- B /Chemical reactions occur when chemical bonds between atoms are formed or broken. The substances that go into a chemical reaction are called the reactants, and the substances produced at the end of the reaction are known as the products
Solution is homogeneous mixture which is made up of two or more substances.Solution is composed of solute and a solvent.Solute is the substance that dissolve while solvent is a liquid in which solvent dissolve. Solution involve a chemical change since new substance are formed and involve chemical reaction.
First you would divide your weight on Earth by 9.8m/s which is the gravitational constant. This would give you your mass which would be 10.2 kg. To find the gravity of the unknown planet you would multiply 9.8m/s by 15 which would be 147m/s. Since weight is defined as mass times gravity you would substitute the mass you found earlier and multiply it by the new gravity. This would give you 10.2kg times 147 m/s which equals 1,499.4 lbs or 1,500 lbs if rounding.
