Answer:
Because it may erode his skin?
Explanation:
Answer:
Explained in Depth.
Explanation:
It is all matter of what kind of stars are we talking about, for simplicity let's say we are talking about normal stars such as our sun.
If there is a molecular cloud that has a mass that is slightly larger than our sun then it is possible that the gravity will eventually pull together cloud into a sphere that would have enough mass to start nuclear fusion which is important to become a star.
Mass of such cloud would be 1.98x10^30Kg almost equal to the sun's mass.
All of this implies that stars are formed when there is enough mass to let gravity pull it all together into a sphere that has enough gravitational pull to start nuclear fusion inside the core.
<u>Answer:</u>
1) 17 N
2) -3 N
3) 14.80 N
4) 4.18 N
5) 12.21 N
<u>Explanation:</u>
The resultant (R) of two forces P and Q acting at an angle θ is given by
We have P = 7N and Q =10N
1) The forces are parallel and act in the same direction ( θ = 0° )
2) The forces are parallel and act in opposite directions( θ = 180° )
3) The forces are inclined at an angle of 60° to each other( θ = 60° )
4) The forces are inclined at an angle of 160°( θ = 160° )
5) The forces act at 90° to each other( θ = 90° )
Answer:
2.6 m/s
Explanation:
mass of Jerome (Mj) = 102 kg
mass of Micheal (Mm) = 98 kg
mass of each cart (Mc) = 14 kg
recoil speed of Jerone and Micheal after push (Vi) = ?
mass of Suzie (Ms) = 44 kg
Suzie's speed after push (Vs) = 9.6 m/s
From the conservation of momentum, initial momentum = final momentum
Since they all are initially at rest the initial momentum is 0 and hence the final momentum is also 0.
Therefore for the final momentum we have
(Mj + Mm + Mc) Vi - (Ms + Mc) Vs = 0 ( the negative sign is because they move in opposite directions)
((102 + 98 + 14) x Vi ) - ((44 + 14) x 9.6) = 0
(214 x Vi) - (58 x 9.6) = 0
214 Vi = 556.8
Vi = 556.8 / 214 = 2.6 m/s
It makes the cells change nasty or healthy
