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Romashka [77]
4 years ago
12

Which measurement is a speed, not a velocity?

Physics
1 answer:
cestrela7 [59]4 years ago
6 0

Answer:

C is the correct answer, 35m/s

Explanation:

This is so because speed doesn't have direction, it is a scalar. Vectors such as velocity do.

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An internal resistance of 5 ohm and a battery of 15 ohm is connected to a resistance of 20 ohm calculate the electric current
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Answer:

.6 A

Explanation:

Battery 15 VOLTS

V = IR

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3 years ago
A soccer player takes a corner kick, lofting a stationary ball 33.0° above the horizon at 15.0 m/s. If the soccer ball has a mas
Alexxandr [17]

Explanation:

It is given that,

Mass of the soccer ball, m = 0.425 kg

Speed of the ball, u = 15 m/s

Angle with horizontal, \theta=33^{\circ}

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Part A,

The x component of the soccer ball's change in momentum is given by :

\Delta p_x=mv\ cos\theta

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p_x=5.34\ kg-m/s

The y component of the soccer ball's change in momentum is given by :

\Delta p_y=mv\ sin\theta

\Delta p_y=0.425\times 15\ sin(33)

p_y=3.47\ kg-m/s

Hence, this is the required solution.

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3 years ago
What happens to the spring when we sit on a sofa
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Answer:

Explanation:

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5 0
3 years ago
How does the speed of an object relate to the energy of the object
Ann [662]

Answer:

Increasing the speed of an object decreases its motion energy. Increasing the speed of an object increases its motion energy. Increasing the speed of an object does not affect its motion energy. Whether or not its motion energy is affected depends on how much its speed was increased.

Explanation:

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