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3 years ago

7

one of the lady spartans was falling to the ground after dunking the winning basket. At the end of her fall, she was falling 4 m

/s. If she was 60kg, how much potential energy did she have at the top of her jump?

1 answer:

Tresset [83]3 years ago

8 0

Answer:

15 is the correct answer I.t.

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3 years ago

I NEED HELP ON 2 QUESTIONS PLEASEEE

tino4ka555 [31]

Answer:

2) c) give-way vessel

3) a) With one short blast

Explanation:

2) A vessel that is required to take early substantial action to ensure avoiding collision called Give way vessel

In overtaking, the vessel intending to overtake is the Give-Way Vessel the vessel that is going to be overtaken is the Stand-On Vessel

Therefore, the correct option is c) give-way vessel

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3 years ago

An electromagnetic wave of wavelength

Ivanshal [37]

Answer:

$4.01\cdot 10^{-7} m$

Explanation:

When an electromagnetic wave passes through the interface between two mediums, it undergoes refraction, which means that it bents and its speed and its wavelength change.

In particular, the wavelength of an electromagnetic wave in a certain medium is related to the index of refraction of the medium by:

$\lambda=\frac{\lambda_0}{n}$

where

$\lambda_0$ is the wavelength in a vacuum (air is a good approximation of vacuum)

n is the refractive index of the medium

In this problem:

$\lambda_0 = 5.89\cdot 10^{-7} m$ is the original wavelength of the wave

n = 1.47 is the index of refraction of corn oil

Therefore, the wavelength of the electromagnetic wave in corn oil is:

$\lambda=\frac{5.89\cdot 10^{-7}}{1.47}=4.01\cdot 10^{-7} m$

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3 years ago

A physics major is cooking breakfast when he notices that the frictional force between the steel spatula and the Teflon frying p

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Answer:

$f_n=3.75N$

Explanation:

From the question we are told that:

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Coefficient of kinetic friction $\mu=0.04$

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$f_n=\frac{F}{\mu}$

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$f_n=\frac{0.150}{0.04}$

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3 years ago

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Vaselesa [24]

The correct answer is B :)

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3 years ago

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