Answer:
a). v=2776 m/s
Explanation:
The speed of the water droplet for the fish be successful is
Taking the distance in axis 'x' and 'y'
The time is the velocity in axis 'x' with the angle 70 so
Now using the time in terms of velocity the motion in axis 'y' can find the velocity to be the fish successful
Answer:
B on edgen
Explanation:
The water in pot X has more kinetic energy than the water in pot Y.
Answer: Reflection is when light bounces off an object. If the surface is smooth and shiny, like glass, water or polished metal, the light will reflect at the same angle as it hit the surface. ... For a smooth surface, reflected light rays travel in the same direction. This is called specular reflection
Explanation:
They both are pretty much the same.
Answer:
2.7 m/s
Explanation:
Draw a free body diagram of the ball. There are two forces:
Weight force mg pulling down
Tension force T pulling 39° above the horizontal
Sum of the forces in the y direction:
∑F = ma
T sin θ − mg = 0
T = mg / sin θ
Sum of the forces in the radial (+x) direction:
∑F = ma
T cos θ = m v² / r
Substitute:
(mg / sin θ) cos θ = m v² / r
mg / tan θ = m v² / r
g / tan θ = v² / r
v = √(gr / tan θ)
Given that r = 0.6 m and θ = 39°:
v = √(9.8 m/s² × 0.6 m / tan 39°)
v ≈ 2.7 m/s