How many items are present in the compound (NH4)2Cr2O7

1 answer:

5 0

In 2Cr2O7 there’s 2 items; Cr and O

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victus00 [196]

Answer:

The acceleration of the car will be $a=9600m/sec^$

Explanation:

We have given that distance from stop sign s = 200 m

Time t = 0.2 sec

We have to find the constant acceleration

Now from second equation of motion $s=ut+\frac{1}{2}at^2$

$200=40\times 0.2+\frac{1}{2}\times a\times 0.2^2$

$a=9600m/sec^$

So the acceleration of the car will be $a=9600m/sec^$

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olga_2 [115]

<span>The angle of refraction is not necessarily equal to the angle
of incidence, whereas the angle of reflection always is.</span>

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Westkost [7]

Answer:

in the nucleus of the atom

Explanation:

a p 3 x

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Scrat [10]

The first blank is character
The last one is eye colour.

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timurjin [86]

K.E.= 1/2 x MV^2 = 1/2 x 40(kg) x (25x25) =12500J

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