Answer:
e).
Explanation:
Assuming no external forces acting during the instant of the explosion, total momentum must be conserved.
As the object was initially at rest, the initial momentum is zero, which means that after the explosion, total momentum must add to zero too.
Let's call m₁ = 3 kg-piece and m₂= 6 kg-piece.
⇒ m₁*v₁ + m₂*v₂ = 0
⇒ 3kg* v₁ = -6kg*v₂
⇒ 6/3 = 2 = v₁/v₂ ⇒ v₂/v₁ = 1/2 (in magnitude)
v₂ (being the speed of the 6-kg piece) = 1/2 * v₁ (speed of thr 3-kg piece).
So, we conclude in that the statement e) is the one that is true.
Answer:
(F)reaction = - 75 N
where, negative sign shows opposite direction.
Explanation:
This question can be answered using Newton's third law of motion. The Newton's Third Law of Motion states that for every action force there is an equal but opposite reaction force.
(F)action = - (F)reaction
Hence, in our scenario if we consider the 75 Newton force applied on the wall to be the action force then the reaction force of the wall must be equal to it in opposite direction. Therefore, the reaction push of the wall must be equal to 75 N.
<u>(F)reaction = - 75 N</u>
<u>where, negative sign shows opposite direction.</u>
<h2><u>Answer:</u></h2>
There's a ton of vitality put away in the bonds between the carbon and hydrogen iotas in glucose. Amid cell breath, redox responses fundamentally exchange this security vitality as electrons from glucose to particles called electron transporters.
In oxidation-decrease response is any substance response in which the oxidation number of a particle, iota, or particle changes by picking up or losing an electron. Redox responses are normal and imperative to a portion of the essential elements of life, including photosynthesis, breath, ignition, and erosion or rusting.
Answer:
the answer is A. they are essential to life on Earth
Explanation:
