Answer:
28.6260196842 m
Explanation:
Let h be the height of the building
t = Time taken by the watermelon to fall to the ground
Time taken to hear the sound is 2.5 seconds
Time taken by the sound to travel the height of the cliff = 2.5-t
Speed of sound in air = 340 m/s
For the watermelon falling

For the sound
Distance = Speed × Time

Here, distance traveled by the stone and sound is equal


The time taken to fall down is 2.4158 seconds

Height of the buidling is 28.6260196842 m
The electric field strength will be 0.6252 V/m. It is the strength at which the field is created by charges.
<h3>What is electric file strength?</h3>
The electric field strength is defined as the ratio of electric force and charge.
The electric field strength is found as;

Hence, the electric field strength will be 0.6252 V/m.
To learn more about the electric field strength, refer to the link;
brainly.com/question/4264413
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Answer:
Correct
Explanation:
Because the light can't travel as quickly in the water as it does in the air, the light bends around the pencil, causing it to look bent in the water. Basically, the light refraction gives the pencil a slight magnifying effect, which makes the angle appear bigger than it actually is, causing the pencil to look crooked.
Explanation:
the heat required to raise the temperature of the unit mass of a given substance by a given amount (usually one degree).
Oceanic because it’s denser