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3 years ago

Does the size of the magnetic field change with the size of the magnet?

Physics

1 answer:

mestny [16]3 years ago

4 0

Answer:

Not all of the time, it can also depend on the strength of the magnet.

Explanation:

say you have a small very strong magnet, that might work just as well as a large but week magnet.

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People often use simple machines like pulleys, levers, and ramps because they say the machine “makes the work easier.” Which of

dimulka [17.4K]

I think the answer is D.
Hope this help

3 0

3 years ago

You place a large pebble in a slingshot, pull the elastic band back to your chin, and release it, launching the pebble horizonta

sladkih [1.3K]

Answer:

The larger pebble has 25 times more mass.

Explanation:

To solve the exercise it is necessary to apply the work and energy conservation equations.

For the case described, the work done must be preserved and must be the same, that is,

$W = 0$

By definition work linked to the conservation of kinetic energy would be given by

$\Delta KE = W = 0$

$\Delta KE = 0$

$KE_{larger}-KE_{smaller} = 0$

$KE_{larger}=KE_{smaller}$

$\frac{1}{2}m_lv_l^2 = \frac{1}{2}m_sv_s^2$

$m_lv_l^2 = m_sv_s^2$

The ratio between the mass and the velocity would be,

$\frac{m_l}{m_s}=\frac{v_s^2}{v_l^2}$

$\frac{m_l}{m_s} = \frac{500^2}{100^2}$

$\frac{m_l}{m_s} = 25$

Therefore the answer is: The larger pebble has 25 times more mass.

4 0

3 years ago

How far will a freely falling object fall from rest in five seconds? six seconds?

Vanyuwa [196]

Distance = 1/2*gravity*velocity^2
So plugging: 1/2 * 9.8 * 25 = 122.5units
and is six second
Distance = 1/2*gravity*velocity^2
So plugging: 1/2 * 9.8 * 36= 176.4 units

4 0

3 years ago

What is the direction of the centripetal force when applied to an object?

mihalych1998 [28]

For an object moving in a path that's a circle or a part of one,
the centripetal force acts in the direction toward the center of
the circle. That direction is perpendicular to the way the object
is moving.

3 0

3 years ago

Read 2 more answers

Which one is the lunar eclipse?

lubasha [3.4K]

Answer:

Yes it would be a lunar eclipse here is an image that I found that might help but during a lunar eclipse when the moon is directly behind earth it will be a full moon

Explanation:

8 0

3 years ago