Answer:
To have a positive job, the two vectors must have the same direction
Explanation:
Work is a scalar defined as the scalar product of two vectors, the froce and the displacement. To have a positive job, the two vectors must have
collinear and that their arrows point in the same direction.
You can also appreciate this from the work equation
W = F. r
bold indicate vector
W = F r cos θ
With θ the angle between force and displacement
a,b,c is your answer light and sound are not considered matter and heat is energy created from matter and electricity is particles moving basically therefore electricity is matter hope this helps
Answer:
decrease the height
Explanation:
height is directly proportional to the g.p.e
Answer:
snowshoes have a large surface area.
Explanation:
this distributes the weight of the person wearing them over a larger surface area, meaning that less downward pressure is applied to the snow which prevents the person sinking into the snow. This allows for easier travel in snow conditions :)
hope this helps!!
