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OleMash [197]
3 years ago
8

During baseball practice, a batter hits a high flyball, and then runs in a straight line and catches it. which has the greater a

verage velocity over the time interval between hit and catch?
Physics
2 answers:
Jlenok [28]3 years ago
6 0
They have the same velocity because their displacements (shortest line from point A to point B, which is a straight line) are the same and they meet at the same time.
Trava [24]3 years ago
4 0

Answer:

The batter and the fly ball have the same average velocity, i.e. no individual velocity is greater than the other.

Explanation:

First of all, it is worthy of note that in a baseball game, when the batter hits the ball, he is expected to immediately make a run in an attempt to catch the ball, by so doing, the batter has a greater chance of catching the ball before it hits the ground  and this is exactly what the batter has done in this practice.

1. The fly ball is hit and the batter runs immediately , this means the batter and the fly ball have the same start time t.

2. The batter catches the fly ball after certain time i.e. the same end time.

3. The batter runs in a straight line to catch the ball i.e. the displacement of both batter and fly ball from hit point to catch point is the same.

MATHEMATICALLY

D_{batter}  = D_{fly ball}

t_{batter}  = t_{fly ball}

Where D = Displacement and t = time

Average velocity  V = \frac{D}{t}

Where D_{batter}  = D_{fly ball}

and

t_{batter}  = t_{fly ball}

This means V_{batter}  = V_{fly ball}

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An object ends up at a final position of x=-55.25 meters after a displacement of -189.34 meters after a displacement of -189.34
Travka [436]

The initial position of the object was found to be 134.09 m.

<u>Explanation:</u>

As displacement is the measure of difference between the final and initial points. In other words, we can say that displacement can be termed as the change in the position of the object irrespective of the path followed by the object to change the path. So

Displacement = Final position - Initial position.

As the final position is stated as -55.25 meters and the displacement is also stated as -189.34 meters. So the initial position will be

Initial position of the object = Final position-Displacement

Initial position = -55.25 m - (-189.34 m) = -55.25 m + 189.34 m = 134.09 m.

Thus, the initial position for the object having a displacement of -189.34 m is determined as 134.09 m.

4 0
2 years ago
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k Nishant

Explanation:

i think option A

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The ability of water molecules to form hydrogen bonds with other water molecules and water's ability to dissolve substances that
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Answer:

The ability of water molecules to form hydrogen bonds with other water molecules and water's ability to dissolve substances that have charges or partial charges are <u>due to water's partial charges.</u>

Explanation:

The partial negative charge on oxygen and partial positive charge on hydrogen enables them to make hydrogen bond and also makes it to dissolve the the other substances having partial charges.

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2 years ago
The atmosphere of Neptune and Uranus have a blue color because of which gas?
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7 0
3 years ago
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A 1.2 nf parallel-plate capacitor has an air gap between its plates. Its capacitance increases by 3.0 nf when the gap is filled
Damm [24]

Answer:

2.5

Explanation:

The capacitance of a parallel-plate capacitor filled with dielectric is given by

C=kC_0

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k is the dielectric constant

C_0 is the capacitance of the capacitor without dielectric

In this problem,

C_0=1.2 nF is the capacitance of the capacitor in air

C=3.0 nF is the capacitance with the dielectric inserted

Solving the equation for k, we find

k=\frac{C}{C_0}=\frac{3.0 nF}{1.2 nF}=2.5

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