Answer:

Explanation:
The formula that relates angular displacement with angular acceleration is:

We can obtain
from the definition of angular acceleration:


Putting all together:

Which, since we want the angular acceleration, is:

And for our values is:

Vector resolution will be used to answer this question as the boat's velocity will have two components, one allowing it to travel across the river and the other taking it downstream.
Answer:
Option A.
Explanation:
The correct answer is Option A.
The car uses energy to move.
A car is a machine that converts energy locked in fuel like petrol or diesel and turn it into mechanical energy.
The energy produced from the combustion of gasoline is then used to move the shaft, which sends the power to the rear axle and the wheel starts to move.
The mineral with Mohs hardness would be scratched because the mineral with Mohs 7 hardness is stronger than the Mohs 5 mineral. Eventually, that mineral would turn into dust if you kept rubbing it.
Answer:
The correct answer would be Saturn's Cassini Division.
Explanation:
Read about it here.
https://caps.gsfc.nasa.gov/simpson/kingswood/rings/
Hope this helps! :)