Answer:
Explanation:
Pressure can be defined as the force per unit area hence there is an inverse relationship between pressure exerted by a substance and the area of that substance. For instance,
(1) if a bag of sand if filled with sand and an individual steps on this bag. The feet of he individual will form no shape/displace little sand sideways in the bag. But if the same quantity of sand is poured in a bigger bag (larger area) and the same individual stands on the bag, the feet of the individual will "sink" (decreased pressure from the bag) displacing some sand sideways.
(2) The straps of a bag are made wide (and not slim) so that the bag can exert lesser pressure on the shoulders when the same quantity of load is carried by the bag than if the straps were made narrow/slim.
Answer:
It is necessary to search for new sources of energy because the sources we have now are non-renewable and exhaustible. The usage of these sources are increasing day by day and if this continues then one day we wlii be left with none so it is necessary to search for new sources of energy
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Answer:
Towards the opposite direction of the motion of the box.
Explanation:
The reason is that the net external force acting on the box when sliding freely across the floor is the frictional force.
Frictional force is a resistant force. It always acts against the direction of motion as it seeks to work against motion to resist it.
This is the reason why frictional force always carries a negative sign.
I would say B but I’m not 100%
Answer: the answer would be 200v I'm pretty sure :)
Explanation: