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3 years ago

How are electric circuits and systems for carrying water in building similar

1 answer:

6 0

They are similar because they both have a potential difference, both can be redirected/diverted and <span>both have current. </span>

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A ball of clay is moving at a speed of 12 m/s collides and sticks to a stationary ball of clay. If each ball has a mass of 13 kg

LUCKY_DIMON [66]

Answer:

p_{f} = 6 m / s

Explanation:

We can solve this exercise using conservation of momentum. For this we define a system formed by the two balls, so that the forces during the collision have been intense and the moment is preserved

Initial instant. Before the crash

p₀ = m v +0

Final moment. Right after the crash

$p_{f}$ = (m + m) v_{f}

how the moment is preserved

p₀ = p_{f}

m v = 2 m v_{f}

v_{f} = v / 2

we calculate

v_{f} = 12/2

p_{f} = 6 m / s

8 0

3 years ago

Two spectators at a soccer game in Montjuic Stadium see, and a moment later hear, the ball being kicked on the playing field. Th

NikAS [45]

Answer:

a) 68.943 m

b) 41.846 m

c) 80.648 m

Explanation:

Given:

Delay in time for spectator A, t₁ = 0.201 s

Delay in time for spectator B, t₂ = 0.122 s

the delay in sound heard is the due to the distance being traveled by the sound from the kicker to the spectator

thus,

a) Distance of the kicker from A,

d₁ = speed of sound × time taken

d₁ = 343 m/s × 0.201 s = 68.943 m

b) Distance of the kicker from B,

d₂ = speed of sound × time taken

d₂ = 343 m/s × 0.122 = 41.846 m

c) Since the angle between the two spectators for the player is 90°

thus, a right angles triangle is formed.

where, the distance between the spectators is the hypotenuses (s) of the so formed triangle

Therefore,

s² = d₁² + d₂²

on substituting the values, we get

s² = 68.943² + 41.846²

s² = 6504.22

s = √6504.22

s = 80.648 m

hence, the distance between the spectators is 80.648 m

3 0

3 years ago

Is soy sauce a heterogeneous or homogeneous mixture?

harkovskaia [24]

Soy sauce is a homogeneous mixture.

3 0

3 years ago

I don’t get how to answer the questions.

Dominik [7]

Write the answer below the question?

6 0

3 years ago

Identify some sports or activities you can do to improve your overall health and explain how physical activity can improve your

Alexxx [7]

Answer:

soccer

Explanation:

soccer can inprove your health because you use all parts of your body playing it. You use your legs because you are running and you use your arms for doing throw ins. Soccer is also good for you because you are not playing for too long. Usually one soccer game is only 1 hour.

Hope this helps

3 0

3 years ago