The state of the atmosphere at a given place and time as regards to heat, dryness sunshine, wind, rain, etc.
Answer:
The sprinter need to climb 6.17 m
Explanation:
From the question,
Ep = Ek...................... Equation 1
Where Ep = potential energy, Ek = kinetic energy.
therefore,
mgh = 1/2mv².................... Equation 2
Where m = mass of the human, v = speed, h = height, g = acceleration due to gravity.
making h the subject of formula in equation 2
h = 1/2v²/g...................... Equation 3
Given: v = 11 m/s
Constant: g = 9.8 m/s²
Substituting these values into equation 3,
h = 1/2(11²)/9.8
h = 6.17 m.
Therefore the sprinter need to climb 6.17 m
Answer:
Rotational frequency=ω/2
Explanation:
Hence rotational frequency will be = 13.55 kHz
Answer:
4.6091 meters
Explanation:
In this problem, to have equilibrium in the seesaw, we need the torque from one child to compensate the torque from the other child.
The torque is calculated by making the product of the mass and the distance to the pivot point.
So, the torque generated by the first child (T1) is equal to:
T1 = m1 * d1 = 39 * 2.6 = 101.4 Nm
To make equilibrium, we need the second child to generate the same torque (T2), so:
T2 = m2 * d2 = 22 * d2 = 101.4
d2 = 101.4 / 22 = 4.6091 m
The second child need to be at 4.6091 meters from the pivot point to be in equilibrium.
