Answer:
IF < KE
Explanation:
The kinetic energy of the gas is greater than the intermolecular forces making the molecules have room to move around without disruption. In a lot of gases, there are sometimes no intermolecular forces between all the particles.
Best of Luck!
Particle is at rest when Velocity = 0
V = X ' ( t ) = 6t^2 - 42t + 72 = 0
V = t^2 - 7t + 12 = 0
Solve for t:t1 = 3t2 = 4Particle is at rest at t = 3 and t = 4.
Answer:
α(0) = 0 rad/s²
α(5) = 15 rad/s²
Explanation:
The angular velocity of the flywheel is given as follows:
w(t) = A + B t²
where, A and B are constants.
Now, for the angular acceleration, we must take derivative of angular velocity with respect to time:
Angular Acceleration = α (t) = dw/dt
α(t) = (d/dt)(A + B t²)
α(t) = 2 B t
where,
B = 1.5
<u>AT t = 0 s</u>
α(0) = 2(1.5)(0)
<u>α(0) = 0 rad/s²</u>
<u></u>
<u>AT t = 5 s</u>
α(5) = 2(1.5)(5)
<u>α(5) = 15 rad/s²</u>
Answer:
Explanation:
If we're talking about gravity acceleration, then
There are a variety of reasons.
1) The earth spins on its axis. The resulting required centripetal acceleration means that gravity is less intense at the equator than at the poles.
2) That same spinning causes the earth to be somewhat fatter about the equator. This means that an object at the equator is farther from the center of earth mass than the same object at a pole. Gravity decreases with the square of the distance between the masses.
3) Earth's composition is not uniform. Higher density rocks like oceanic basaltic crust will have a greater gravitational influence than lower density rocks such as continental granite.
4) much like #2, altitude will affect gravity. One would weigh slightly more in a valley than at the top of a nearby mountain due to the distance from the center of earth mass.
This depends on what units you need to convert to, but the answer would be approximately 2.083 m/s.
5km/40min = 5000m/40min = 5000m/2400s = 2.083 m/s