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Sav [38]
3 years ago
14

Which of the following describes electric change?

Physics
2 answers:
DedPeter [7]3 years ago
8 0
It would be B, like charges repel and unlike charges attract.
Illusion [34]3 years ago
4 0
That is B: Like charges repel. Unlike charges attract.
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igomit [66]

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3 years ago
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One type of slingshot can be made from a length of rope and a leather pocket for holding the stone. The stone can be thrown by w
grigory [225]

Answer:

15.66 rad/s

Explanation:

The vertical motion and horizontal motion are independent of each other.

t = √ ( 2 s/ g) where t = time for the ball to reach the ground and s is the height of the cliff = 18.0 m

t = √ ( 36 / 9.81 ) = 1.916 secs

horizontal distance travel = ut where u is the horizontal velocity of the stone = 30 × r (radius)

tangential velocity V = angular velocity ( ω) × radius

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4 0
3 years ago
The mass of block B is twice the mass of block A, while the mass of the pulley is equal to the mass of block A. The blocks are l
marshall27 [118]

Answer:

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Explanation:

As we can see the figure that B is connected to the right string while A is connected to the left string

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now we know that pulley is also rotating so the tangential acceleration of the rope at the contact point with pulley must be same as that of acceleration of the blocks

so here pulley will rotate clockwise direction

So tension in the right string must be more than the left string

So correct answer will be

C)the right cord pulls on the pulley with greater force than the left cord

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