a > g , is the best shows the magnitude a and the direction of the ball's acceleration at time.
<h3>What is acceleration?</h3>
Acceleration is the rate at which the speed and direction of a moving object change over time. A point or object travelling in a straight path is accelerated if it accelerates or decelerates. Even if the speed is constant, motion on a circle is accelerated because the direction is always changing.
Given data
The velocity of the ball is: V
The angle of velocity with the horizontal is (θ) = 45
The acceleration of the ball is: a
The acceleration due to gravity is: g
When the hollow ball is projected into the air, air resistance will act on the ball that will slow down the ball's motion. Therefore the velocity direction is opposite to the reducing force. The reducing force relates to the opposite to the acceleration of the hollow ball.
F(delaying) ∝ -VF(delaying) ∝ m×a(r)×F(delaying) ∝ a(r)
Here m is the mass of the hollow ball.
The force of gravity on the ball which is acting downward given as:
F(gravity) ∝ g
So, a > g
Correct option: (B)
To know more about acceleration refer to:
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Answer:
im not sure, but i think...
Explanation:
the harpy eagle???
The ratio of T1 : T2 is 1.6
<h3>
What is Simple Harmonic Motion ?</h3>
SHM is the periodic motion of a particle along a line such that the acceleration of the body is directed toward a fixed point and proportional to its displacement.
Given that a pendulum of length 130.0 cm has a period of oscillation, T₁.
Then, The period T₁ = 2
T₁ = 2 x 3.142 
T₁ = 6.284 x 0.36
T₁ = 2.266
But if T = 0
then, m
/r = mg
the m will cancel out
Then v = 
where r = 50/100 = 0.5m
Substitute into the formula
v = 
v = 2.24 m/s
Also, given that the bob is pulled and released to move in a horizontal circle of radius 50.0 cm and the period of rotation is T2,
w = 2f
w = 2/T
but v = wr
w = v/r
Therefore,
v/r = 2/T
Substitute all the parameters into the formula
2.24/0.5 = (2 x 3.1423) /T
T = 6.284/4.472
T = 1.405 = 
The ratio T₁: T2 will be 2.266/1.405
The ratio is 1.6
Learn more about Simple Harmonic Motion here: brainly.com/question/24646514
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When two atoms of the same nonmetal react,they form what we know today as a diatomic molecule.
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