3 years ago

Lemonade powder is stirred into water until it dissolves. Which are true statements?

Physics

1 answer:

ASHA 777 [7]3 years ago

6 0

Also B. Water is the solvent is correct

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How fast is a ball rolling if it contains 98 j of kinetic energy and has a mass of 4kg

zysi [14]

Answer:

the ball is rolling 7m/s

Explanation:

Formula for kinetic energy: 1/2mv²

K = 1/2mv²

98 = 1/2(4)v²

98 = 2v²

49 = v²

√49 = v

7 = v

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3 years ago

Elementary physics in a real automobile accident

Fudgin [204]

Is this even a question

7 0

3 years ago

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Keith_Richards [23]

Increase in velocity and decrease in velocity are the answers

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3 years ago

I'm contrast to Venus the coldest temperature yet measured on the surface of any body in the solar system is -235C

DENIUS [597]

Answer:

Explanation:

I don't get what the relation here is. Venus is the hottest planet in our solar system. And yes, it's hotter than mercury despite mercury being closer to the sun. And your question talks about the coldest temperature measured which is -235 degrees Celsius. That surely isn't measured on Venus. I'm only wondering what Venus has got to go with cold and what exactly your question is

6 0

3 years ago

Suppose a vertebra is subjected to a shearing force of 420 N. Find the shear deformation in m, taking the vertebra to be a cylin

vazorg [7]

Answer:

$1.34103\times 10^{-7}\ m$

Explanation:

F = Shearing force = 420 N

$L_0$ = Initial length = 2.6 cm

d = Diameter = 3.6 cm

r = Radius = $\frac{d}{2}=\frac{3.6}{2}=1.8\ cm$

E = Young's modulus = $80\times 10^9\ N/m^2$

A = Area = $\pi r^2$

Change in length is given by

$\Delta L=\frac{FL_0}{AE}\\\Rightarrow \\\Rightarrow \Delta L=\frac{420\times 0.026}{\pi 0.018^2\times 80\times 10^9}\\\Rightarrow \Delta L=1.34103\times 10^{-7}\ m$

The shear deformation of the vertebra is $1.34103\times 10^{-7}\ m$

8 0

3 years ago