The navigation rules for countries in the Unites States are compiled in the U.S. Coast Guard. There are actually boating courses that are recognized by the U.S Coast Guard. One of the things they discuss there is the emergency aids every boat should have depending on the size and purpose. For recreational vessels with lengths measuring less than 39.4 feet, they must carry aboard an efficient sound producing device. This will serve as your signal when emergencies happen and you have to get the attention of nearby boat vessels. Hence, for practical purposes, every boat should have a whistle or a horn.
Answer:
Principle of conservation of linear momentum is state as provided no external force acts on a system of colliding bodies the total linear momentum of the bodies (in a given direction) remains constant
Sure. But whether it's provable is another question. We used to think the Milky Way was the whole universe. Then we found lots of other galaxies. Finding other universes is a bit different though. In theory we can never get out of our universe to go there. Anywhere we can get go is, by definition, still our universe. In this way our universe is like a black hole. No matter how hard we try we can't escape. Not even light can escape which means we couldn't see other universes if we wanted to. Their light is trapped inside them, like a black hole. So it would never reach our universe, never reach our telescopes.
Answer:
The scattering angle is 0.80
Explanation:
As we know
Wave length = h/mc (1-cos α) --1
W = mc^2
m = E/c^2
Substituting this in equation 1 we get
Wavelength = hc/E (1-cos α)
Substituting the given values, we get -
0.95*10^-9 = [(6.626 *10^-34 * 2.998 *10^8)/5.111*1000*1.6*10^-19} (1-cos α)
(1-cos α) = 1.14 *10^-10
cos α = 1- 1.14 *10^-10
α = 0.80
Answer:
I mean they have the same amount of velocity
