Answer:
785.398 W
444.5698 m
Explanation:
I = Intensity of sound
r = Distance
The intensity of sound is given by

Power

The power output of the speaker is 785.398 W
If 


The distance would be 444.5698 m
Answer:
3040 torr
Explanation:
Applying,
PV = P'V'..................... Equation 1
Where P = Initial Pressure, V = Initial volume, P' = Final pressure, V' = Final volume.
Make P' the subject of the equation
P' = PV/V'................. Equation 2
From the question,
Given: P = 760 torr, V = 56.2 L, V' = 56.2/4 = 14.05 L
Substitute these values into equation 2
P' = (56.2×760)/14.05
P' = 3040 torr
Answer:
have moon except merc and Venus
Answer:
4 meter per second square is the acceleration
Explanation:
Force=mass x acceleration
8N= 2kg x acceleration
8N/2kg = acceleration
4 meter per second square is the acceleration.
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Answer:
Molecules must collide with sufficient energy, known as the activation energy, so that chemical bonds can break. Molecules must collide with the proper orientation.
Explanation:
A collision that meets these two criteria, and that results in a chemical reaction, is known as a successful collision or an effective collision.