Supplementary angles add up to 180°.
If one is 40°, then the other is (180° - 40°) = 140° .
None of those choices describes a plane.
Choice 'C' is the only example of a plane.
Answer:
Explanation:
The concept of elastic and inelastic demand is applied.
for an elastic demand, the elasticity must be greater than 1 and for an Inelastic demand, the elasticity must be less than 1.
The steps and appropriate calculation is as shown in the attached file.
Answer:
See the answer below
Explanation:
If you step on the brake of a car while driving, the frictional force between the tires of the car and the surface of the road increases in opposition to the motion of the car. Consequently, the car slows down.
If you release your foot from the brake pedal when the car is still at half speed, the frictional force reduces and the car speeds up a bit even without pressing the throttle. Eventually, the frictional force will slow down and stop the car if the throttle is not pressed.
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>
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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.
The answer is false. the amount of protons is the same amount as the mass.
