Tangential speed = radius of track times angular velocity.v=r omega.(180,000/60x60)=r omega.2pi r = 2,400 metres -> r = 2,400/(2pi)(180,000/60x60)=2,400/(2pi) omega(180,000x2pi/60x60x2,400)= omega****************************************
Answer:
<em>The distance covered by comet is </em>
Explanation:
Speed is defined as the rate of change of distance with time. It is given by the equation speed= 
Thus distance= 
In this problem it is given that speed of comet= 
time travelled by the comet= 4 hours
Thus distance= 
= 
= 
The properties of the wave don't determine its speed. The properties of the medium do. You can FIND the speed by measuring the wave's frequency and wavelength.
D.3. a.4. sorry this is all i know hope this helps
Answer:
A: Nose
Explanation:
Because your nose has mucus covered hairs that catch some of the dust particles that you inhale.