Answer: For me personally i have a Biblical faith and first of all there is evidence that looks convincing that the big bang made the universe, but man wants answers and God in the Bible says he created the universe for us it is hard to believe it but i have faith.
<span>a = 25-13/6 = 12/6 = 2 m/s^2
Av speed: 25+13/2 = 38/2 = 19 m/sec
Dist = speed * time
19 * 6 = 114 meters</span>
(3) The frictional force exerted by the floor on the box
Answer:
Explanation:
Given that,
Mass of the heavier car m_1 = 1750 kg
Mass of the lighter car m_2 = 1350 kg
The speed of the lighter car just after collision can be represented as follows
![m_1u_1+m_2u_2=m_1v_1+m_2v_2\\\\v_2=\frac{m_1u_1+m_2u_2-m_1v_1}{m_2}](https://tex.z-dn.net/?f=m_1u_1%2Bm_2u_2%3Dm_1v_1%2Bm_2v_2%5C%5C%5C%5Cv_2%3D%5Cfrac%7Bm_1u_1%2Bm_2u_2-m_1v_1%7D%7Bm_2%7D)
![v_2=\frac{(1850)(1.4)+(1450)(-1.10)-(1850)(0.250)}{1450} \\\\=\frac{2590+(-1595)-(462.5)}{1450} \\\\=\frac{2590-1595-462.5}{1450} \\\\=\frac{532.5}{1450}\\\\=0.367m/s](https://tex.z-dn.net/?f=v_2%3D%5Cfrac%7B%281850%29%281.4%29%2B%281450%29%28-1.10%29-%281850%29%280.250%29%7D%7B1450%7D%20%5C%5C%5C%5C%3D%5Cfrac%7B2590%2B%28-1595%29-%28462.5%29%7D%7B1450%7D%20%5C%5C%5C%5C%3D%5Cfrac%7B2590-1595-462.5%7D%7B1450%7D%20%5C%5C%5C%5C%3D%5Cfrac%7B532.5%7D%7B1450%7D%5C%5C%5C%5C%3D0.367m%2Fs)
b) the change in the combined kinetic energy of the two-car system during this collision
![\Delta K.E=(\frac{1}{2} m_1v_1^2+\frac{1}{2} m_2v_2^2)-(\frac{1}{2} m_1u_1^2+\frac{1}{2} m_2u_2^2)\\\\=\frac{1}{2} (m_1(v_1^2-u_1^2)+m_2(v_2^2-u_2^2))](https://tex.z-dn.net/?f=%5CDelta%20K.E%3D%28%5Cfrac%7B1%7D%7B2%7D%20m_1v_1%5E2%2B%5Cfrac%7B1%7D%7B2%7D%20m_2v_2%5E2%29-%28%5Cfrac%7B1%7D%7B2%7D%20m_1u_1%5E2%2B%5Cfrac%7B1%7D%7B2%7D%20m_2u_2%5E2%29%5C%5C%5C%5C%3D%5Cfrac%7B1%7D%7B2%7D%20%28m_1%28v_1%5E2-u_1%5E2%29%2Bm_2%28v_2%5E2-u_2%5E2%29%29)
substitute the value in the equation above
![=\frac{1}{2} (1850((0.250)^2-(1.4)^2)+(1450((0.3670)^2-(-1.10)^2)\\\\=\frac{1}{2}(11850(0.0625-1.96)+(1450(0.1347)-(1.21))\\\\= \frac{1}{2}(11850(-1.8975))+(1450(-1.0753))\\\\=\frac{1}{2} (-3510.375+(-1559.185)\\\\=\frac{1}{2} (-5069.56)\\\\=-2534.78J](https://tex.z-dn.net/?f=%3D%5Cfrac%7B1%7D%7B2%7D%20%281850%28%280.250%29%5E2-%281.4%29%5E2%29%2B%281450%28%280.3670%29%5E2-%28-1.10%29%5E2%29%5C%5C%5C%5C%3D%5Cfrac%7B1%7D%7B2%7D%2811850%280.0625-1.96%29%2B%281450%280.1347%29-%281.21%29%29%5C%5C%5C%5C%3D%20%5Cfrac%7B1%7D%7B2%7D%2811850%28-1.8975%29%29%2B%281450%28-1.0753%29%29%5C%5C%5C%5C%3D%5Cfrac%7B1%7D%7B2%7D%20%28-3510.375%2B%28-1559.185%29%5C%5C%5C%5C%3D%5Cfrac%7B1%7D%7B2%7D%20%28-5069.56%29%5C%5C%5C%5C%3D-2534.78J)
Hence, the change in combine kinetic energy is -2534.78J
There are 2 electrons generated from the oxidation of one water molecule.
<h3>Describe photooxidation.</h3>
The process of a substance interacting with oxygen or losing electrons from chemical species under the influence of light is known as photooxidation. Photooxidation happens in plants when there is environmental stress. It is called photooxidative stress as a result. Reactive oxygen species are produced by the absorption of excess excitation energy in plant tissues. Chloroplasts are harmed by the accumulation of these reactive oxygen species, which is a damaging process in plants. High-intensity light and little
are the two conditions that cause this photooxidative stress to occur most frequently. It is a procedure that requires light. Photorespiration in
plants guards against photooxidation.
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