To find the average of something you must first add everything together and then divide it by the total amount of numbers you added together.
First add 72 and 64 together
72+64=136
Now divide 136 by 2
136/2=68
So the average speed of the train is 68 kilometers
(mu s) is the coefficient of kinetic friction, <span> (mu k) is a normal force,</span>
Just remember
Voltage = current times resistance
current = voltage over resistance
Current = 9/3 = 3
Answer:
1kg steam will have the maximum energy
The answer is D
Friction acts as a centripetal force in the case of a car turning. The friction creates a tangential force allowing the car to turn.
Tension can act as a centripetal force in the case of circles. Such as swinging a mass on a string, the tension force allows it to move in a curved path.
Gravity acts as a centripetal force in the case of satellites. The gravity keeps the satellite within the orbit.
