The inclined plane is the best simple machine to assist with moving heavy objects into a truck. It allows for less force to be used by distributing the required force over a longer distance.
The simple machine that is best suited to assist with the task of moving heavy objects into a moving truck 1.5 meters above the ground is the inclined plane (option D).
An inclined plane is a flat surface that is inclined or sloped, which allows us to move objects up or down with less force. By using an inclined plane such as a ramp, we can reduce the amount of force needed to lift the heavy objects into the truck.
For example, instead of trying to lift a heavy object straight up into the truck, which would require a significant amount of force, we can use an inclined plane to gradually raise the object by pushing it up the inclined surface. This allows us to distribute the required force over a longer distance, making it easier to move the object.
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Answer:
The horizontal component of this force is about 36 N.
Explanation:
Given that,
Bruce is is pulling on his lead with a force of 40 N
Angle below horizontal,
We need to find the horizontal component of this force. The horizontal component of any vector is given by :
or
So, the horizontal component of this force is about 36 N. Hence, this is the required solution.
Answer:
Explanation:
A social trap refers to short term benefits, but long terms loss in a certain social group, that's why is called trap. One good example of social trap could be overexploitation of resources. Our societies is inside this social trap, which help to develop the economy, but with a long term ecology costs, because it degrades complete ecosystems.
So, in this case, the only answer that don't contribute to reduce this social problem, it's "establishing laws that decrease cooperative behaviour", because the lack of cooperativeness is one way to ensure the perpetuation and development of social traps.
All other options, actually contributes to reduce this social phenomenon. Modelling altruistic behaviours, education, and regulations on behaviour which could impact collectives, all of these are positive decisions that improve our social intelligence, and could ensure the reduce of social traps.
When attempting to increase the distance traveled by a projectile, what must occur
Energy or power has to be increased to increase the distance travelled by the projectile.
Explanation:
Projectile motion is defined as when an object is thrown or projected at a particular angle and it reaches the ground after sometime due to acceleration and gravity.
For example, throwing a ball in air. To increase the distance travelled by the object due to projectile motion, one must increase the power at which the object to set.
To increase the distance of a projectile you must increase the power behind the projectile. However you must also change the angle if you are aiming for a specific point. By increasing the power the momentum transfers to the object and the projectile gains more velocity and more distance. Also remember that energy transfers. For more distance you must have more velocity.
B. constructive interference
C. destructive interference
D. destructive diffraction
Two or more waves combining to produce a wave with a smaller displacement is called destructive interference .
Destructive interference happens when the maxima of two waves are 180° out of phase a positive displacement of one wave is canceled exactly by a negative displacement of the other wave.
The formula for brighter patches resulting from constructive interference and darker patches resulting from destructive interference in a diffraction grating is:
Two or more waves combining to produce a wave with a smaller displacement is called destructive interference .
Hence, option C is correct.
To learn more about destructive interference refer to the link;
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destructive interference occurs when two or more waves combine to make a wave with a smaller amplitude C is your answer my friend :)