B.The siren will get louder and higher as the ambulance moves towards you
Hope this helped !
Answer:
a) 1250 J
b) 17.9 m
Explanation:
Convert horsepower to watts:
0.12 HP = 89.5 W
a) Work = power × time
W = (89.5 W) (14 s)
W = 1250 J
b) Work = force × distance
1250 J = (70 N) d
d = 17.9 m
Answer:
F<em>lift=</em>5.00×10³ N
F<em>horizontal</em>=0.50×10³ N
F<em>g</em>=4.80×10³ N
Explanation:
A free-body diagram of the glider.
pretend this is a number line
^
| F<em>lift</em>
|
|
|---->F<em>horizontal</em>
|
| F<em>g</em>
|
∨
hope this helps! :)
<h3><u>L</u><u>A</u><u>P</u><u>L</u><u>A</u><u>C</u><u>E</u><u> </u><u>L</u><u>A</u><u>W</u><u> </u><u>:</u><u>-</u></h3>
Laplace's law for the gauge pressure inside a cylindrical membrane is given by
<h3>ΔP = γ/r</h3>
<u>W</u><u>h</u><u>e</u><u>r</u><u>e</u>
γ => surface tension
r => the radius of the cylinder
Note : there is an inverse relation between the pressure and the radius.
