Answer:
hi,
When one stands at a particular place, the point in the sky directly above the head is called Zenith.
Explanation:
hope it helps(≡^∇^≡)
good day
thank u ✅
Density is directly proportional to mass. So if there's less matter inside object, its density will also reduce.
Answer:
To maintain enough time to prevent a collision, a system operating in air traffic where aircraft speed does not
fall below 100 km/h (most medium-sized UAVs and GA aircraft) will need to be able to detect obstacles which
subtend an arc-width of as small as 0.125 mra
I am not sure if this is what your looking for but most machines use oil
