Answer:
Most interstellar clouds remain stable in size because the force of gravity is opposed by thermal pressure within the cloud.
(thermal pressure is the pressure resulting from the thermal motions of the particles in the cloud)
Their relative speed is the sum of 60 and 40 or 100km/hr. They will travel the 150km in 1.5 hrs.<span>When two object approach each other, the closing speed is just the sum of the speeds, therefore, the closing speed is your case is 100kph. </span>
<span>Just take the distance of 150 km and divide by 100 to get 1.5 hours </span>
<span>checking: </span>
<span>the car going 60 will have traveled 60*1.5 = 90 km </span>
<span>the car going 40 will have traveled 40*1.5 = 60 km </span>
<span>the sum of the distances = 90+60 = 1.5 hours </span>
<span>So they will meet in 1.5 hours.</span>
Faraday discovered that a current could be induced in a solenoid (a coil of wire) when "<span>a magnetized rod is being moved through the coil"
Hope this helps!</span>
3 seconds (330 m) / second =
990 meter
