<span> to minimize the effects of variables other than the independent variable</span>
Answer: 0.47 rad/sec
Explanation:
By definition, the angular velocity is the rate of change of the angle traveled with time, so we can state the following:
ω = ∆θ/ ∆t
Now, we are told that in 13.3 sec, the ball completes one revolution around the circle, which means that, by definition of angle, it has rotated 2 π rad (an arc of 2πr over the radius r), so we can find ω as follows:
ω = 2 π / 13.3 rad/sec = 0.47 rad/sec
1. because they have the same numbers of protons and electrons.
2. by the number of its protons and neutrons
3. yes, because the isotopes of an element also have the same number of electrons.
The sun in the red giant, its big and an orangey red color
a. By the work-energy theorem, the total work required to stop the car is equal to the change in its kinetic energy,
<em>W</em> = 0 - 1/2 (750 kg) (25 m/s)² ≈ -230 kJ
b. The car covers a distance <em>x</em> as it stops such that
<em>W</em> = (-725 N) <em>x</em> ==> <em>x</em> ≈ 320 m