Answer:
Explanation:
As the source is situated on x - axis , it must be situated in between the two listeners .
So the x coordinate of source is
(-7 + 3 )/2
= - 2 m
The equation of the wave- front will be that o a circle having centre at (-2,0)
and radius = distance between -2 and 3 , that is 5 m
equation of circle
=( x+2 )² + y² = 25
It cuts y axis when x = 0
Putting x = 0
4 + y² = 25
y² = 21
y = + √21 , or - √21
Answer:
D
Explanation:
We know the formula for Work to be:
W = f * d
Where W is work done
f is force
d is the distance
A)
Work = 50
Distance = 50
So, Force is:
Force = 50/50 = 1
B)
Work = 400
Distance = 80
Force = 400/80 = 5
C)
Work = 365
Distance = 73
Force = 365/73 = 5
D)
Work = 144
Distance = 16
Force = 144/16 = 9
Hence, D is the situation in which the force applied is the greatest.
Answer: The tension in the string is zero
Explanation:
The two properties of the leaf that allow it to be affected by air resistance include its distance from the ground and its mass.
<h3>What is mass?</h3>
Mass is a scalar quantity that measures the inertia of a given body and/or object, which represent one of the most important characteristics of the matter.
This measurement (mass) may affect the flight of an object because mass inertia is associated with gravity and does not allow its movement.
In conclusion, the two properties of the leaf that allow it to be affected by air resistance include its distance from the ground and its mass.
Learn more about mass and inertia here:
brainly.com/question/1140505
#SPJ1
