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Crazy boy [7]
3 years ago
7

Which statement is true about magnetic poles?

Physics
2 answers:
timofeeve [1]3 years ago
7 0

Answer:

The second one because opposite poles attract.

Hope this helps!

Explanation:

Shtirlitz [24]3 years ago
4 0

A

B) north and south poles attract

because the opposite magnetic fields align and attract each other

PLZ mark mine the brainliest.

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A 2.5 kg block is launched along the ground by a spring with a spring constant of 56 N/m. The spring is initially compressed 0.7
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vf ^2 = kx^2/m = 56(0.75)^2 / 2.5 = 12.6


Therefore, v= 3.5 m/s.

7 0
3 years ago
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Which car is experiencing negative acceleration?
IgorLugansk [536]

Answer:B

Explanation:

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2 years ago
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a ball is thrown inclined in to the air with a initial velocity of u. if it reaches the maximum height in 6 seconds , find the r
olga55 [171]

Answer:

11:1

Explanation:

At constant acceleration, an object's position is:

y = y₀ + v₀ t + ½ at²

Given y₀ = 0, v₀ = u, and a = -g:

y = u t − ½g t²

After 6 seconds, the ball reaches the maximum height (v = 0).

v = at + v₀

0 = (-g)(6) + u

u = 6g

Substituting:

y = 6g t − ½g t²

The displacement between t=0 and t=1 is:

Δy = [ 6g (1) − ½g (1)² ] − [ 6g (0) − ½g (0)² ]

Δy = 6g − ½g

Δy = 5½g

The displacement between t=6 and t=7 is:

Δy = [ 6g (7) − ½g (7)² ] − [ 6g (6) − ½g (6)² ]

Δy = (42g − 24½g) − (36g − 18g)

Δy = 17½g − 18g

Δy = -½g

So the ratio of the distances traveled is:

(5½g) / (½g)

11 / 1

The ratio is 11:1.

8 0
3 years ago
State the principle of floatation​
WARRIOR [948]

Explanation:

<em><u>Principle of Floatation</u></em>

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7 0
3 years ago
Please someone help me !!
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Answer:

D

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because if the solvent is more than the solvent then we can't resolve it.

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6 0
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