4 years ago

Help!!!!!!!!!!!!!!!!!!! I need someone to check my homework, I will give you 50 points if you answer!!!

Physics

1 answer:

bogdanovich [222]4 years ago

6 0

I might be incorrect but I’m pretty confident that all of it is right. I think you’re good.

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A 7.25 kg7.25 kg block is sent up a ramp inclined at an angle ????=28.5°θ=28.5° from the horizontal. It is given an initial velo

Free_Kalibri [48]

Answer:

15.03 m

Explanation:

Given:

mass of the block, m = 7.25 kg

Angle, Θ = 28.5°

Initial speed of the block, v₀ = 15 m/s

let the distance traveled by the block be 's'

Now, applying the work energy theorem,

we have

$(m\times g\times\sin(\theta)\times s) + \mu_k\times mg\times s\times cos(\theta) = \frac{1}{2}\times m\times v^2$

on substituting the values in the above equation, we get

$(7.25\times 9.8\times\sin(28.5^o)\times s) + 0.326\times 7.25\times9.8\times s\times cos(28.5^o) = \frac{1}{2}\times 7.25\times 15^2$

$33.902\times s) +20.35\times s = 815.625$

$54.252\times s = 815.625$

s = 15.03 m

Hence, the block will travel 15.03 m up the ramp

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3 years ago

When reading, what should you look for first?

n200080 [17]

Answer: B

Explanation:

Hopes this helps!!

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3 years ago

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What is the density of mass 45.837grams volume 1703.3414centimeters

Finger [1]

density equals mass over volume for example: d=m/v, so 45.837g/1703.3414cm =

p = 0.02691 g/cm3

=11.943cm

You would have to do some conversion to get the 11.943cm

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4 years ago

Astronomers study objects as large as galaxies. Chemists study objects that can be as small as an atom. Which of the following i

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Answer:

A. both fields use the same technology

Explanation:

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Dennis_Churaev [7]

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