Answer:
Centripetal acceleration will be equal to
Explanation:
We have given time taken to cover 180° is 0.5 sec
So time taken by 360° is equal to = 2×0.5 = 1 sec
Radius of the circle r = 0.520 m
So distance 
So velocity 
We have to find the centripetal acceleration
Centripetal acceleration will be equal to 
So centripetal acceleration will be equal to
I think it will be 800j because right absorb mean getting more
the answer is c) the speed and direction of travel must be constant
Answer: Energy cannot be <u>created</u> or <u>destroyed</u> just <u>changes</u> in form.
Explanation:
This is the principle of the first Law of Thermodynamics, which relates the work and the transferred energy exchanged in a system through the internal energy, which is neither created nor destroyed, it is only transformed.
In other words: The total energy of a system is always conserved.
Answer:
Speedometer.
Explanation:
If you look at the speedometer in a car, you will see your instantaneous speed. Speedometers tell you your speed of that moment and thats what instantaneous speed.