Answer:
it should be the second option
Explanation:
I can't really see because the picture is kinda blurry
Answer:
Block A has the greatest density.
Explaination:
Block A density:0.0625 kg/cm3
Block B density:0.020833 kg/cm3
Block C density:0.041667 kg/cm3
Answer:
25.9 m/s
Explanation:
mass of ball, m = 0.145 kg
initial velocity, u = + 32 m/s
It bounce back with the velocity but in opposite direction so final velocity,
v = - v
Impulse, I = - 8.4 Ns
Impulse is defined as the change in momentum
I = m v - mu = m (v - u)
- 8.4 = 0.145 x (- v - 3 2)
- 57.9 = - v - 32
v = 57.9 - 32 = 25.9 m/s
Thus, the final speed of the ball is 25.9 m/s
<span>light amplification by stimulated emission of radiation
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