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sp2606 [1]
3 years ago
6

The first periodic table of elements Mendeleev created contained how many elements

Physics
1 answer:
Mila [183]3 years ago
6 0
Mendeleev created a periodic table with 63 initial elements.
He left gaps for unknown elements.
To this date, there are 118 elements in the periodic table.
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How could the action force of a canoe moving through water be increased?.
BaLLatris [955]
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4 0
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Find the net force and acceleration. 10 points. Will give brainliest.
Afina-wow [57]

Answer:

a) 16 N

b) 2.13 m/s²

Explanation:

Draw a free body diagram of the tv stand.  There are four forces:

Weight force mg pulling down,

Normal force N pushing up,

Friction force Nμ pushing left,

and applied force P pulling right.

Sum of forces in the y direction:

∑F = ma

N − mg = 0

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The net force in the x direction is:

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∑F = 16 N

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3 0
3 years ago
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An object with a mass of 375g is moving with a constant velocity. It has a force of -20 N applied to it. Determine the accelerat
olga55 [171]

Answer:

Explanation:

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375g = 375/1000kg = 0.375kg

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-20 = 0.375a

a = -20/0.375

a = -53

The object is accelerating at 53m/s/s backwards assuming that the forward motion is positive.

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PLEASE ANSWER ASAP!!!
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