<u>STEP ONE:</u>
Let you and your friend stand as far away as possible from a large reflecting wall and clap your hands rapidly at a regular rate.
<u>STEP TWO:</u>
Adjust this rate until each clap just coincides with the return of an echo of its predecessor, or until clap and echo are heard as equally spaced.
<u>STEP THREE:</u>
Use a stopwatch to find the time between claps, t. Make a rough measurement of distance to the wall, s. Thus the speed of sound, v = 2s/t
Answer:
ionic
Explanation:
ionic bond is when a metal and nonmetal are bonded together
metallic bond is when a two metal are bonded
covalent is nonmetal and nonmetal bond or idk
B. Gravity and air resistance.
Answer:
Explanation:
F=ma
F=10N
A=v-u upon t
=1.5-0 upon 3
=0.5m per second squared
Then do force divided by. Accelaration and multiply by gravity.
Answer:
the answer is B
Melting point, temperature at which the solid and liquid forms of a pure substance can exist in equilibrium. As heat is applied to a solid, its temperature will increase until the melting point is reached. More heat then will convert the solid into a liquid with no temperature change.
