Explanation:
The given data is as follows.
radius (r) = 3.25 cm,
Now, we will calculate the tangential acceleration as follows.
Putting the given values into the above formula as follows.
=
= 37.7
Thus, we can conclude that the tangential acceleration of a point on the rim of the flywheel during this spin-up process is 37.7 .
Answer:
0 m/s
Explanation:
Relative speed is defined as the speed of an object with respect with another object.
In other words, it is the speed of an object as viewed from the frame of reference of another object.
When two objects are moving in the same direction, their relative velocity is given as:
where velocity of first object
velocity of second object
In the case of the two cars,
22 m/s
Therefore:
Their relative velocity is 0 m/s.
Answer:
Mass and energy are inter convertible.As per Einsteins mass and energy relations i.e ,some amount of energy is lost that is converted into energy .
In our day to day life ,generally mass is lost and energy is formed. In a ideal assumption we subtract the mass of earlier one from the later one which indirectly denotes that some amount of mass is lost and energy is released .There is also endothermic reactions where energy is needed which does not mean mass is added.Here simply energy is needed to initiate the reactions.
So instead of subtracting the smaller value from lager we subtract the initial value from final as the latter one can explain a physical phenomenon in a better way.we can get some in formation from it.