Answer:
in a kaleidoscope the mirror make an angel of 90 degree with each other
Answer
given,
at time t = 10 s moving from left to right speed of particle = 5 m/s
at t = 20 s moving from right to left speed of particle is = 8 m/s
a) acceleration


a = -1.3 m/s²
b) using equation of motion
v = u + at
5 = u - 1.3 × 10
u = 5 + 13
u = 18 m/s
c) v = u + at
0 = 18 - 1.3t

t = 13.85 s
Answer:
energy left over from the big bang
Explanation:
25.08m
Explanation:
velocity=9.12m/s
time=2.75s
R(horizontal range)=velocity*time
=9.12*2.75
=25.08m
Here's the solution,
A.) calculate work done :
we know,

And,

B.) find power :
