Groundwater <span>Precipitation that sinks into the ground is called Groundwater.</span>
Answer:
471392.4 N
Explanation:
From the question,
Just before contact with the beam,
mgh = Fd.................... Equation 1
Where m = mass of the beam, g = acceleration due to gravity, h = height. F = average Force on the beam, d = distance.
make f the subject of the equation
F = mgh/d................ Equation 2
Given: m = 1900 kg, h = 4 m, d = 15.8 = 0.158 m
Constant: g = 9.8 m/s²
Substitute into equation 2
F = 1900(4)(9.8)/0.158
F = 471392.4 N
Answer :
The answer is clearly C
Explanation:
Because the only way currents move are to the side
The idea that objects only change their velocity due to a force is encapsulated in Newton's first law. Newton's first law: An object at rest remains at rest, or if in motion, remains in motion at a constant velocity unless acted on by a net external force.
Answer:
<em>A. The magnitude of the net force exerted on the disk
</em>
<em>B. The distance between the center of the disk and where the net force is applied to the disk</em>
<em></em>
Explanation:
To determine the change in angular momentum of the disk after a stipulated time, one must measure the above options.
<em>The radius of the disk is fixed and does not vary with the experiment, and the mass of the disk is also constant and known.</em>
<em>One must first measure the magnitude of the net force exerted on the disk</em>, and determine the torque as a result of this torque from the distance between the center of the disk and the point where the net force is applied. The above statement also points out <em>the necessity of measuring the distance between the center of the disk and the point where the net force is applied on the disk, as both the torque, and the moment of inertia is calculated from this point</em>.
torque T = Force time distance of point of action of force from mid point of the disk
T = F X r
T x t = Δ(Iω)
Where t is the time,
and Δ(Iω) is change in angular momentum.
