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larisa86 [58]
3 years ago
14

What is An object that changes position?

Physics
1 answer:
mel-nik [20]3 years ago
6 0

Explanation:

Motion is when an object changes position over time. The object in motion is usually in front of a reference point-an object that appears to stay in one place. The rate at which an object moves is called speed. Speed depends on both time and distance. The velocity of an object is how fast it is going in one direction

How do you know if an object has changed position?

changes position requires a point of reference. An object changes position if it moves relative to a reference point. To visualize this, picture yourself competing in a 100-m dash. You begin just behind the start line

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Answer:

1.25 m/s

Explanation:

Given,

Mass of first ball=0.3 kg

Its speed before collision=2.5 m/s

Its speed after collision=2 m/s

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Momentum of 1st ball=mass of the ball*velocity

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Since the first ball undergoes head on collision with the second ball,

momentum of first ball=momentum of second ball

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Just before the ball leaves her hand, what is its centripetal acceleration?
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Two parallel-plate capacitors have the same plate area, but the plate gap in capacitor 1 is twice as big as capacitor 2. If capa
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Answer:

Capacitance of the second capacitor = 2C

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               \texttt{Capacitance, C}_2=\frac{\varepsilon_0A_2}{d_2}=\frac{\varepsilon_0A_1}{\frac{d_1}{2}}=2\times \frac{\varepsilon_0A_1}{d_1}=2C

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B is the correct answer
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