2 years ago

Draw a Lewis dot structure for Hf

1 answer:

3 0

Answer:

There!!

Explanation:

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Fittoniya [83]

Answer:

1)4*10^7 * 5= 2*10^8

2)50/10=5

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3 years ago

hammer [34]

For the first question, you got them right, for the two you left blank, initial(beginning) velocity: 2 m/s the final velocity is: 12 m/s

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Blababa [14]

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Musya8 [376]

Presumably, the ball is kicked parallel to the ground below the cliff, so its altitude y at time t is

$y(t)=50\,\mathrm m-\dfrac12gt^2$

where g = 9.80 m/s^2 is the acceleration due to gravity.

The ball hits the ground when y = 0:

$0 = 50\,\mathrm m-\dfrac12gt^2$

$t^2=\dfrac{100\,\mathrm m}g$

$t=\dfrac{10}{9.80}\,\mathrm s\approx\boxed{3.2\,\mathrm s}$

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3 years ago

inna [77]

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3 years ago

Draw a Lewis dot structure for Hf​