Answer: 9.7*10^-21 J
Explanation:
Given
Mass of oxygen atom, m = 2.66*10^-26 kg
Separation distance between the two atoms, r = 2.2*10^-10 m
Angular speed, w = 5.49*10^12 rad/s
First, we start by finding our moment of Inertia, I, using the relation
I = 1/2mr²
I = 1/2 * 2.66*10^-26 * (2.2*10^-10)²
I = 1/2 * 1.2874*10^-45
I = 6.437*10^-46 kgm²
The Rotational Kinetic Energy is given by
KE = 1/2Iw²
Now, using this value of I, we plug it in the energy equation.
KE = 1/2 * 6.437*10^-46 * (5.49*10^12)²
KE = 1/2 * 1.94*10^-20
KE = 9.7*10^-21 J
Thus, the rotational kinetic energy is 9.7*10^-21 J
Along with neurons, the nervous system contains other specialized cells called glial cells (or simply glia), which provide structural and metabolic support. Nervous systems are found in most multicellular animals, but vary greatly in complexity.
Answer:
gravity
Explanation:
Even when satellites are thousands of miles away, Earth's gravity still tugs on them. Gravity—combined with the satellite's momentum from its launch into space—cause the satellite to go into orbit above Earth, instead of falling back down to the ground.
In order to begin moving a Mass(Accelaration) will solve for the force required to move the skateboard
Mass(9.8) will give you the force needed to move the skateboard originally
Upward force provided by the branch is 260 N
<u>Explanation:</u>
Given -
Mass of Gibbon, m = 9.3 kg
Length of the branch, r = 0.6 m
Speed of the movement, v = 3.3 m/s
Upward force, T = ?
The tension force in the rod must be greater than the weight at the bottom of the swing in order to provide an upward centripetal acceleration.
Therefore,
F net = T - mg
F net = ma = mv²/r
Thus,
T = mv²/r + mg
T = m ( v²/r + g)
T = 9.3 [ ( 3.3)² / 0.6 + 9.8]
T = 259.9 N ≈ 260 N
Therefore, upward force provided by the branch is 260 N
