In order to add or subtract numbers expressed in scientific notation, it is important that the powers of 10 in the numbers should have the same index or else you cannot readily add or ubtract these numbers. We do as follows:<span>
a. 5.80 x 10^9 s +3.20 x 10^8 s
We need to adjust one of the numbers since they do not have the same indices. We move one place to the left of the second number making it .320 x 10^9 s. Then, we can add the numbers now:
</span>5.80 x 10^9 s +.320 x 10^9 s = 6.12 x 10^9 s<span>
b. 4.87 x 10^-6 m - 1.93 x 10^-6 m
We can subtract the numbers directly since they have the same indices.
</span>4.87 x 10^-6 m - 1.93 x 10^-6 m = 2.94 x 10^-6 m
They move faster and move farther apart
Torque = Force applied x lever arm. It twists the object or changes the rotational motion of things
Hope it helps
Answer:
Check the explanation
Explanation:
This is the step by step explanation to the above question:
= v * (83.1 * (v-4.3) - 80.7 ( v+4.3))/ [83.1 *(v - 4.3) + 80.7*(v + 4.3)]
v = 344 m/s
vi = 344 * ( 83.1* (344-4.3) - 80.7*(344+4.3) ) / (83.1 *(344 - 4.3) + 80.7*(344 + 4.3))
= 0.74 m/s
Answer:
angular speed of both the children will be same
Explanation:
Rate of revolution of the merry go round is given as
f = 4.04 rev/min
so here we have
here we know that angular frequency is given as
now this is the angular speed of the disc and this speed will remain same for all points lying on the disc
Angular speed do not depends on the distance from the center but it will be same for all positions of the disc