Explanation:
Using Kinematics,
We have v = u + at.
=> v = (5m/s) + (2.0m/s²)(4.0s)
=> v = 13m/s.
Hence the child's speed is now 13m/s.
It will be cloudy and there will be rain.
Hope this helps
Answer:
It has no effect on the amplitude.
Explanation:
When the sandbag is dropped, then the cart is at its maximum speed. Dropping the sand bag does not affect the speed instantly, this is because the energy remains within the system after the bag as been dropped. The cart will always return to its equilibrium point with the same amount of kinetic energy, as a result the same maximum speed is maintained.
Answer: 1.43
Explanation:
Given that:
C (critical angle) = 44.4°
n (refractive index of plastic) = ?
Apply the formula n = 1/sineC, the index of refraction for the plastic can be obtained by:
n = 1/sineC
n = 1/sine 44.4°
n = (1/0.6996)
n = 1.43
Thus, the index of refraction for the plastic is 1.43
