Answer:
C. Electrons are both gained and lost
Answer:
427.196 m
Explanation:
u = Initial velocity = 312 m/s
t = Time = 1.4 s
s = Displacement
a = -9.8 m/s² (because the bullet is decelerating as the bullet is going straight up)
Equation of motion
So, Displacement at 1.4 seconds is 427.196 m
I am pretty sure the answer is transformed or converted.
Lessening frictions Means it harder to stop
Answer: A
Potential energy = 14.7 J
Explanation:
Given that the
Mass M = 5 kg
Height h = 0.3 m
Let us take acceleration due to gravity g = 9.81 m/s^2
Potential energy = mgh
Substitute all the parameters into the formula above
P.E = 5 × 9.81 × 0.3
P.E = 14.715 J
P.E = 14.7 J approximately
The correct option is therefore A