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3241004551 [841]
3 years ago
9

~please help~

Physics
2 answers:
PtichkaEL [24]3 years ago
6 0
Technically, you haven't said ... so we have to guess ... whether your bulbs
are arranged in a series circuit or a parallel circuit.

I've read your question, then read it again, then read it between the lines,
then read it between the words, then read it between the letters.  I THINK
that when you say they're connected "one after the other", you're describing
all three bulbs connected in one line.  There's no place in the circuit where
the path splits, no 'fork in the road', and no place where the current has to
decide which turn to take. 

-- That's called a "series circuit".

-- Since there's only one path for current to take, all the way around the
circuit from one battery terminal to the other one, every electron has to
flow through every bulb.

-- If a gap opens up anywhere in the circuit, then there's no way for current
to make the trip, and everything stops.

-- If one bulb lights up, then all the bulbs light up.

-- And if one bulb burns out or gets stolen, then all the bulbs go out.
Schach [20]3 years ago
4 0

Answer: B neither of the two bulbs will stay lit

I just took the test and got it right

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The answer is chemical.
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3 years ago
You are on the south bank of the river in your canoe you need to reach the north bank you know that you can row your canoe at 2
Anna71 [15]

Answer:

(θ) = 60°

Explanation:

Given:

Speed of canoe Vc = 2 m/s

Speed of River Vr = 1 m/s

Computation:

Vc (Cosθ) = Vr

2 (Cosθ) = 1

(Cosθ) =  1 / 2

(Cosθ) = (Cos60)

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3 0
3 years ago
The ballistic pendulum is a device used to measure the speed of a projectile such as a bullet. The projectile of mass m is fired
My name is Ann [436]

Answer:

Relation between initial speed of bullet and height h is given as

v = \frac{m + M}{m}\sqrt{2gh}

Explanation:

As we know that system of block and bullet swings up to height h after collision

So we have

(m + M)gh = \frac{1}{2}(m + M)v_1^2

so we have

v_1 = \sqrt{2gh}

so speed of the block + bullet just after the impact is given by above equation

Now we also know that there is no force on the system of bullet + block in the direction of motion

So we can use momentum conservation

mv = (m + M)v_1

now we have

v = \frac{m + M}{m}\sqrt{2gh}

5 0
3 years ago
5. Susan exerted 400 newtons of force while pushing on a huge boulder. The boulder moved 0 meters. Calculate work.
Stells [14]

Answer:

0 J

Explanation:

Work is the product of force and distance in the direction of force.

The formula is ; Work = Force * Distance

Given that :

Force = 400 N

Distance = 0 meters

Work = 400 * 0 = 0 J

No work was done because the boulder did not move.

4 0
3 years ago
Is this right? Please help me
morpeh [17]

Answer:

yes

Explanation:

4 0
3 years ago
Read 2 more answers
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