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2 years ago

How long does a player sit out of a game of handball for committing a second or third foul?

Physics

1 answer:

yulyashka [42]2 years ago

5 0

Answer:

Walking’ - If a handball player takes more than three steps without dribbling (bouncing the ball) or holds the ball for more than 3 seconds without bouncing it, shooting or passing, then that is deemed ‘walking' and possession is lost.

'Double dribble’ - Handball players cannot receive the ball and bounce it, then hold the ball, and bounce it again. This is termed ‘double dribble’ and is against the rules.

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In Fig. 21-25, particle 1 of charge &1.0 mC and particle 2 of charge $3.0 mC are held at separation L ! 10.0 cm on an x axis

Kaylis [27]

Answer:

Since the particle 1 and 2 are on the x-axis, the 3rd particle should also be on the x-axis in order the net force on it to be zero.

Let's denote the distance between particles 1 and 3 as x. Therefore the distance between particles 2 and 3 is (0.1 - x), since the distance between 1 and 2 is 0.1 m.

Coulomb's Law states the force between charges as

$F_{1-3} = \frac{1}{4\pi \epsilon_0}\frac{q_1q_3}{x^2}$

$F_{2-3} = \frac{1}{4\pi \epsilon_0}\frac{q_2 q_3}{(0.1 -x)^2}$

The question asks that $F_{1-3} = F_{2-3}$ , so

$\frac{1}{4\pi \epsilon_0}\frac{1\times 10^{-3} \times q_3}{x^2} = \frac{1}{4\pi \epsilon_0}\frac{3\times 10^{-3}\times q_3}{(0.1 - x)^2}\\\frac{1}{x^2} = \frac{3}{(0.1 - x)^2}\\3x^2 = 0.01 -0.2x + x^2\\2x^2 + 0.2x - 0.01 = 0\\x_1 = 0.036m\\x_2 = -0.136m$

We will take the positive root:

$x = 0.036~m$ away from the first particle.

Explanation:

Since Fig. 21-25 is not given in the question, the exact locations are not known. However, the location of the third particle is found to be 0.036 m away from the first particle and the third particle is located between the particles 1 and 2.

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2 years ago

if two waves with equal amplitudes and wavelengths travel through a medium in such a way that a particular particle of the mediu

Novosadov [1.4K]

If two waves with equal amplitude and wavelength travel through a medium such that particular particle is at the crest of one wave and at the trough of another wave, then destructive interference will take place.Both waves will cancel each other out at that point such that a node will form in which the particle will remain at its rest position only and will not move.

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3 years ago

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Ô tô có khối lượng 2500kg

Galina-37 [17]

Answer:

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2 years ago

A ball is gently dropped from a height of 20 m. If its velocity Increases uniformly at the rate of 10 m s2, with what velocity w

Pie

Answer:

20 m/s

Explanation:

Height (s)= 20m

acceleration (a) = 10 m/s^2

v=?

we know,

V^2= U^2 + 2as. (U is initial velocity)

or,. V^2 = 0 + 2 × 10 × 20

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Matter is the ability to cause change. True or False

mario62 [17]

False! The ability to cause change is energy, not matter.

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3 years ago

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