Answer: east and west
Explanation:The east
to west daily motions of stars, planets, the Moon, and the Sun are caused by the rotation of the Earth on its axis. The Earth and all the planets revolve around the Sun on circular orbits.
You didn't mention it, but the trumpeter herself has to be standing still.
<span>Person C, the one running towards the trumpeter, hears a pitch
that is higher than B-flat. (A)
Person B, the one running away from the trumpeter, hears a pitch
that is lower than B-flat.
Person D, the one standing still the whole time, hears the B-flat.</span>
The punch. The wall cannot move
(a) The total mass of the dogs is:
The mass of the sled is:
So, the total mass is: 
The total force exerted by the dogs is:
So, we can find the acceleration of the dogs by using Newton's second law:
(b) The acceleration we found at point (a) is also the acceleration of the sled, which has a mass of 210 kg. Therefore, the force exerted by the dogs on the sled is equal to the product between the mass of the sled and its acceleration:
Answer:
Option d
Explanation:
Interference is the phenomenon in which two or more waves having the same frequency combines or cancel out each other to form a resulting wave with the amplitude equals the sum of the amplitudes of the waves that are combined.
Thus it is clear that the particle with the wave nature can produce interference pattern. Hence, electron, light, sound, all of these produces interference pattern when directed towards the slits that are suitably spaced.
