Answer:
So what is the volume and centimeters cube of gold plated? ... because we're actually going to use the area equation of a cylinder surface area of a ... So once we do all of that, that gives us point to and that isn't centimeter. ... That's going to give us our surface area off the the medallion. ... SA = 27.646 cm2.
1 answer
·
Top answer:
a. 2.765x10-3 cm3 b. 0.053 gExplanation:
A mountain range because an ocean ridge is an underwater mountain hope this helps you
Yes, it is possible to determine the final speed of the rollercoaster if the initial speed and the height to be reached are known.
According the principle of conservation of energy, the total kinetic energy is equal to the total potential energy.
![P.E _i + K.E_i = P.E_f + K.E_f \\\\mgh_i + \frac{1}{2} mv_i^2 = mgh_f + \frac{1}{2} mv_f^2\\\\gh_i + \frac{1}{2} v_i^2 = gh_f + \frac{1}{2} v_f^2\\\\g(0) + \frac{1}{2} v_i^2 = gh_f + \frac{1}{2} v_f^2\\\\\frac{1}{2} v_i^2 = gh_f + \frac{1}{2} v_f^2\\\\v_i^2 = 2gh_f + v_f^2\\\\v_i^2 - 2gh_f = v_f^2\\\\v_f = \sqrt{v_i^2 - 2gh_f}](https://tex.z-dn.net/?f=P.E%20_i%20%2B%20K.E_i%20%3D%20P.E_f%20%2B%20K.E_f%20%5C%5C%5C%5Cmgh_i%20%2B%20%5Cfrac%7B1%7D%7B2%7D%20mv_i%5E2%20%3D%20mgh_f%20%2B%20%5Cfrac%7B1%7D%7B2%7D%20mv_f%5E2%5C%5C%5C%5Cgh_i%20%2B%20%5Cfrac%7B1%7D%7B2%7D%20v_i%5E2%20%3D%20gh_f%20%2B%20%5Cfrac%7B1%7D%7B2%7D%20v_f%5E2%5C%5C%5C%5Cg%280%29%20%2B%20%5Cfrac%7B1%7D%7B2%7D%20v_i%5E2%20%3D%20gh_f%20%2B%20%5Cfrac%7B1%7D%7B2%7D%20v_f%5E2%5C%5C%5C%5C%5Cfrac%7B1%7D%7B2%7D%20v_i%5E2%20%3D%20gh_f%20%2B%20%5Cfrac%7B1%7D%7B2%7D%20v_f%5E2%5C%5C%5C%5Cv_i%5E2%20%3D%202gh_f%20%2B%20v_f%5E2%5C%5C%5C%5Cv_i%5E2%20%20-%202gh_f%20%3D%20v_f%5E2%5C%5C%5C%5Cv_f%20%3D%20%5Csqrt%7Bv_i%5E2%20%20-%202gh_f%7D)
where;
<em> is the </em><em>initial velocity</em><em> of the roller coaster</em>- <em />
<em> is the </em><em>final velocity </em><em>of the roller coaster</em> - <em />
<em> is </em><em>maximum height </em><em>reached by the roller coaster</em>
Thus, it is possible to determine the final speed of the rollercoaster if the initial speed and the height to be reached are known.
Learn more about conservation of energy here: brainly.com/question/166559
#1
Wavelength = 13 km
it vibrates 10 times each minute
so the frequency is defined by the number of vibrations per second
![f = 10 per\: min](https://tex.z-dn.net/?f=f%20%3D%2010%20per%5C%3A%20min)
![f = \frac{10}{60}](https://tex.z-dn.net/?f=f%20%3D%20%5Cfrac%7B10%7D%7B60%7D)
now the speed of wave is defined as
![v = \lambda* f](https://tex.z-dn.net/?f=v%20%3D%20%5Clambda%2A%20f)
![v = 13* \frac{1}{6} = 2.2 km/s](https://tex.z-dn.net/?f=v%20%3D%2013%2A%20%5Cfrac%7B1%7D%7B6%7D%20%3D%202.2%20km%2Fs)
<em>so here velocity of wave is 2.2 km/s</em>
#2
Intensity of wave is directly proportional to the square of its amplitude
so we can say
![Intensity = k*(amplitude)^2](https://tex.z-dn.net/?f=Intensity%20%3D%20k%2A%28amplitude%29%5E2)
k = constant
so if amplitude is doubled then its intensity will be increased by its square
<em>so intensity is 4 times</em>
The free energy change for generating the electrical imbalance of protons in respiring mitochondria in culture will be 14.5 kJ/mol.
<h3>What is free energy?</h3>
Free energy is the greatest amount of non-expansion work that a closed system can extract.
The free energy change for generating the electrical imbalance of protons is found as;
![\rm \triangle G = ZF \triangle \psi\ \\\\ \triangle G =1 \times 96485 \times 0.150\\\\ \triangle G= 14.5 \ kJ/mol](https://tex.z-dn.net/?f=%5Crm%20%5Ctriangle%20G%20%3D%20ZF%20%5Ctriangle%20%5Cpsi%5C%20%5C%5C%5C%5C%20%20%5Ctriangle%20G%20%3D1%20%5Ctimes%2096485%20%5Ctimes%200.150%5C%5C%5C%5C%20%5Ctriangle%20G%3D%2014.5%20%5C%20kJ%2Fmol)
Hence,the free energy change for generating the electrical imbalance of protons in respiring mitochondria in culture will be 14.5 kJ/mol.
To learn more about the free energy, refer:
brainly.com/question/15319033
#SPJ4