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2 years ago

To which end of the horseshoe magnet will the north end of the magnet be attracted

Physics

1 answer:

Scrat [10]2 years ago

7 0

Answer:

The north end of the magnet will be attracted to the south end of the horseshoe magnet.

Likewise, the north end of the magnet will be attracted to the earth's north pole - so the north pole of the earth is actually a south magnetic pole.

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The graph shows the heating curve of water.

Lesechka [4]

The answers I got was D and B

8 0

3 years ago

Read 2 more answers

A playground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. A 63.0-kg child, initially at the top, slide

mario62 [17]

Answer:

initial: 1654.6 J, final: 0 J, change: -1654.6 J

Explanation:

The length of the slide is

L = 8.80 ft = 2.68 m

So the height of the child when he is at the top of the slide is (with respect to the ground)

$h = L sin \theta = (2.68 m)sin 25.0^{\circ}=1.13 m$

The potential energy of the child at the top is given by:

$U = mgh$

where

m = 63.0 kg is the mass of the child

g = 9.8 m/s^2 is the acceleration due to gravity

h = 1.13 m

Substituting,

$U=(63.0 kg)(9.8 m/s^2)(2.68 m)=1654.6 J$

At the bottom instead, the height is zero:

h = 0

So the potential energy is also zero: U = 0 J.

This means that the change in potential energy as the child slides down is

$\Delta U = 0 J - (1654.6 J) = -1654.6 J$

7 0

2 years ago

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lubasha [3.4K]

Pe=1/2Kx^2
Half times spring constant times distance squared over time

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2 years ago

A student mixes two substances in a large beaker. After two hours, the student sees that the substances have separated again.

S_A_V [24]

The full question is found in the image attached

Answer:

Densities

Explanation:

When we talk about density, one of the things that come to our mind is actually how heavy something is.

If i have substances that possess different densities, i will notice that i can not really mix them because they will separate and the heavier substance will be at the bottom while the lighter substance will be at the top.

Hence the two substances separated due to difference in density.