Answer:
Explanation:
Given
Horizontal bar rises with 300 mm/s
Let us take the horizontal component of P be
where 
is angle made by horizontal bar with x axis
Velocity at y=150 mm
thus 
position of
Velocity at this instant
Answer:
Option (B)
Explanation:
In the stabilizing natural selection, the extreme traits from both the ends are eliminated by natural selection and natural selection favors the intermediate trait. So over time individuals having the intermediate traits are selected over the individuals having extreme traits.
So here the population of the bat which possesses moderate wing length is selected over the individual with extreme traits like individuals with short wings and long wings. As a result, the population of moderate length wing bats increased.
Therefore the correct answer is (B)- stabilizing natural selection.
catholic I did this a while back but wyd you mark it physics
Answer:
0.13
Explanation:
Draw a free body diagram. There are three forces:
Weight force mg pulling down.
Normal force N pushing perpendicular to the incline.
Friction force Nμ pushing parallel up the incline.
Sum of the forces perpendicular to the incline:
∑F = ma
N − mg cos θ = 0
N = mg cos θ
Sum of the forces parallel down the incline:
∑F = ma
mg sin θ − Nμ = ma
mg sin θ − mgμ cos θ = ma
g sin θ − gμ cos θ = a
gμ cos θ = g sin θ − a
μ = (g sin θ − a) / (g cos θ)
Given a = 3.3 m/s² and θ = 27°:
μ = (9.8 m/s² sin 27° − 3.3 m/s²) / (9.8 m/s² cos 27°)
μ = 0.13
Well water or any liquid actually takes the form of the cup of bowl or whatever you put the liquid in
REMEMBER- Liquid has no shape.
hope this helps!!!!!!!!
