74. A gardener holds the nozzle of a hose constant at a small angle above the horizontal and observes the
path of the stream of water coming from the nozzle. If the pressure of the water is increase so that the
water leaves the nozzle at a greater speed,
A the height and horizontal width of the water's path will increase
B. the height of the water's path will increase but the horizontal width of the water's path will remain the
same
C. the horizontal width of the water's path will increase but the height of the water's path will remain the
same
D. the height and horizontal width of the water's path will remain the same
15. If vectors are moved according to the rules of the triangle method of vector addition, then the resultar
vector is drawn_
A. from the tail of the first vector to the tail of the last vector
B. from the tail of the first vector to the tip of the last vector
C) from the tip of the first vector to the tip of the last vector
D. from the tip of the first vector to the tip of the last vector
16. Assuming no air friction and ay = g, the horizontal displacement of a projectile launched at an a

Question

06-09-2019
Physics

contestada

74. A gardener holds the nozzle of a hose constant at a small angle above the horizontal and observes the
path of the stream of water coming from the nozzle. If the pressure of the water is increase so that the
water leaves the nozzle at a greater speed,
A the height and horizontal width of the water's path will increase
B. the height of the water's path will increase but the horizontal width of the water's path will remain the
same
C. the horizontal width of the water's path will increase but the height of the water's path will remain the
same
D. the height and horizontal width of the water's path will remain the same
15. If vectors are moved according to the rules of the triangle method of vector addition, then the resultar
vector is drawn_
A. from the tail of the first vector to the tail of the last vector
B. from the tail of the first vector to the tip of the last vector
C) from the tip of the first vector to the tip of the last vector
D. from the tip of the first vector to the tip of the last vector
16. Assuming no air friction and ay = g, the horizontal displacement of a projectile launched at an a

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MediocreLemon MediocreLemon · Answer 1 · 2019-09-07T03:54:46+02:00

I hope these answers are helpful:
74. (A) The height and horizontal width of the water’s path will increase.

The reason is that the position which the gardener holds the nozzle would probably increase the pressure to push the flow rate of the water along the length of the hose to push against gravity.
15. (B) From the tail of the first vector to the top of the last vector.

The direction of a vector is from its tail to its head. Examples that are similar would be an arrow or a line segment.