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2 years ago

12

If you answe my question ill get you 50 pionts The smallest piece of matter that still has the properties of an element is a(n)

1.compound
2.electron

3.atom

4.nucleus

1 answer:

timurjin [86]2 years ago

8 0

Answer:

I think its number 3, correct me if I'm wrong.

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Your friend clams that objects do not have to be thouching for a magnetic force to cause motion. How would you support your frie

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Yes because something that has been electrically charged can make other things move without touching them ( this is called force without contact)
Hoped this helped :)

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Because light travels in a straight line and casts a shadow, Isaac Newton hypothesized that light is

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A stream of particles

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You blow across the open mouth of a test tube and produce the fundamental standing wave of the air column inside the test tube i

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Answer:

B: 980 Hz

Explanation:

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Water falls without splashing at a rate of 0.200 L/s from a height of 3.60 m into a 0.730 kg bucket on a scale. If the bucket is

dimaraw [331]

Answer:

15.106 N

Explanation:

From the given information,

The weight of the bucket can be calculated as:

$W_b = m_bg = \\ \\ W_b = (0.730 \ kg) ( 9.80 \ m/s^2) \\ \\ W_b = 7.154 \ N$

The mass of the water accumulated in the bucket after 3.20s is:

$m_w= (0.20 \ L/s) ( 3.20)s$

$m _w=0.64 \ kg$

To determine the weight of the water accumulated in the bucket, we have:

$W_w = m_w g$

$W_w = ( 0.64 \ kg )(9.80\ m \ /s^2)$

$W_w = 6.272 \ N$

For the speed of the water before hitting the bucket; we have:

$v = \sqrt{2gh}$

$v = \sqrt{2*9.80 \ m/s^2 * 3.60 \ m}$

v = 8.4 m/s

Now, the force required to stop the water later when it already hit the bucket is:

$F = v ( \dfrac {dm}{dt} )$

$F = (8.4 \ m/s)( 0.200 \ L/s)$

F = 1.68 N

Finally, the reading scale is:

$F_{scale$ = 7.154 N + 6.272 N + 1.68 N

= 15.106 N

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If the electric potential at a point in space is zero, then the electric field at that point is:

icang [17]

E - impossible to determine based on the given information

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