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3 years ago

Help with this. ....

Physics

1 answer:

Dovator [93]3 years ago

4 0

Answer:

Explanation:

The x component is the adjacent side making up the given angle (39.4)

The vector is the hypotenuse.

The definition of the cos (x) is adjacent / hypotenuse.

cos(39.4) = adjacent / 47.3 Multiply both sides by 47.3

47.3 * cos(39.4) = adjacent Cos(39.4) = 0.7727

adjacent = 36.55

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A photon is absorbed by an electron that is in the n = 3 state of a hydrogen atom, causing the hydrogen atom to become ionized.

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Answer:

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Explanation:

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1 eV is equal to $1.6*10^{-19}J$ , so:

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Solving for $\lambda$ and replacing the given values:

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3 years ago

A large crate is suspended from the end of a vertical rope. Is the tension in the rope greater when the crate is at rest or when

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Answer:

Part a)

the tension force is equal to the weight of the crate

Part b)

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Explanation:

Part a)

When large crate is suspended at rest or moving with uniform speed then it is given as

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here since speed is constant or it is at rest

so we will have

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Part b)

Now let say the crate is accelerating upwards

now we can say

$F_t - mg = ma$

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Answer:

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