Answer:
The motion is described by a set of explanations below
Explanation:
For the part A, the position of the moment is represented by the plot on each side in the far left. Because the mass has been pulled down, this can only assume the negative downward direction. Thus, graphs D and H will be negative on the far left at a position when the time t = 0.
For the part B, the position of the mass will be at point E.
For the part C, the mass will be at the position F. This is because the acceleration is a derivative of the velocity of the object as given by the following derivative equation:

where a = acceleration and v is the velocity.
Answer: 22.7 meters
Explanation: The distance traveled is how much the ball has rolled in total, this means the lenght of the path that it has followed from begining to end.
Since it first travels 13.2 meters and then 9.5 meters, if we sum this quantities:
13.2 + 9.5 = 22.7 meters
So 22.7 is the distance that the ball has traveled.
<span>If the pitch of a sound increased, then the wave frequency increased. (D)</span>
Answer:
Explanation:
Due to change in the position of 3 kg mass , the moment of inertia of the system changes , due to which angular speed changes . We shall apply conservation of angular momentum , because no external torque is acting .
Initial moment of inertia I₁ = M R² = 3 x 1 ² = 3 kg m²
Final moment of inertia I₂ = M R² = 3 x .3 ² = 0.27 kg m²
Applying law of conservation of angular momentum
I₁ ω₁ = I₂ ω₂
Putting the values ,
3 x .75 = .27 x ω₂
ω₂ = 8.33 rad / s
New angular speed = 8.33 rad /s .
Answer:
Density = Mass/volume. D= 60/30.Divide it and you'll get ur answer as 2