It depends upon the lengths and speeds of the cars.
Because they move with wind currents (which can be different at different altitudes). If they are going in opposite directions, they cannot be at the same altitude. If they were at the same altitude, they would be subject to the same winds, so could not be going in opposite directions.
it's about one hour drive going 100km/h it's about one hour drive going 100km/h
Continental Crust
Uh...they were going in opposite directions?
It takes7 minutes and 7 secondsto drive 4km at 100km/ph
yes
Start in the same point but are going in opposite directions
Is a solid yellow line to my left on the road means what
Because we can't see the image you're referring to, we can't give the answer to which ray is opposite to BA. However, we can help. Opposite rays are two rays that both start from a common point and go off in exactly opposite directions. So, if there are two rays (BA and BC) with a common endpoint (B) going in different directions, they are called opposite rays.
Speed is a scalar, velocity is a vector. Two objects moving at the same speed but in opposite directions will have opposite velocities. If the velocity of the elevator going up is v, the velocity of the elevator going down will be -v.
Never, since they are travelling in opposite directions.. . . but probably not the one the algebra book's authors intended....If you assume that "opposite directions" means the cars are travelling towards each other, their closing speed (i.e. relative speed) is 105 mph. That means they'll meet in 100/105 hours, or slightly more than 57 minutes.
On a road, a solid line divides lanes of traffic which are going in opposite directions. A line composed of dashes divides lanes of traffic going in the same direction.