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marishachu [46]

3 years ago

10

I really need help

1 answer:

Alina [70]3 years ago

6 0

Answer:

Find the velocity of a projectile at the highest point, if it is projected with a speed 15ms-1 in the direction 45∘ above horizontla. (take g = 10ms-2) Answer : 15√2ms-1 along horizontal

Explanation:

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K20+H2O how many total oxygen atoms are there

kakasveta [241]

I think there would be 2 oxygen atoms,
If h2o is two hydrogen atoms and 1 oxygen atom then h2o has 2 potassium atoms and 1 oxygen atom, if you were to add them then together it would have 2 oxygen atoms, plz if I'm wrong correct me

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Answer:

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3 years ago

Small-plane pilots regularly compete in "message drop" competitions, dropping heavy weights (for which air resistance can be ign

iren [92.7K]

plane is flying at an altitude of 70 m

now if an object is dropped from it then time taken by object to drop on ground will be given as

$y = v_i* t + \frac{1}{2}at^2$

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given that

y = 70 m

a = 9.8 m/s^2

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2 years ago

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The proper time between two events is measured by clocks at rest in a reference frame in which the two events: The proper time b

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