Efficiency = 45J/120J = 0.375
Or
0.375 * 100% = 37.5 %
A tissue donor is what you're probably looking for. :)
Answer:
B. 1500 kg*m/s
Explanation:
Momentum p = m* v
In any type of collision, the total momentum is preserved!
The total momentum before and the total momentum after the collision is the same. We know the mass and speed after the collision so we can calculate the total momentum.
p1 + p2 =
m1*v1 + m2*v2
m1 = me = 300 kg
v1 = 3 m/s
v2 = 2 m/s
Substitute the given numbers:
300*3 + 300+2
900 + 600
1500 kg*m/s, which is answer B.
Breathe and now I’m just filling in more letters so it’ll go thru
The charge on the moving particle
