The answer is c) RNA contains uracil and ribose.
Answer:
d
Explanation:
we need the tea to be at first moist in order to get much more flavor. then supersaturated so that it increases the concentration of the flavor by it not being too sweet nor too salty. so just right.
<span>Heat is radiated, atmospheric moisture condenses at a rate greater than that at which it can evaporate, resulting in the formation of water droplets.</span>
Answer:
(a) Potential energy of the child is converted into the kinetic energy at the bottom off the slide and a part of which is lost into friction generating heat between the contact surfaces.
(b) ![U=668.16\ J](https://tex.z-dn.net/?f=U%3D668.16%5C%20J)
Explanation:
Given:
- mass of the child,
![m=24\ kg](https://tex.z-dn.net/?f=m%3D24%5C%20kg)
- height of the slide,
![h=3.3\ m](https://tex.z-dn.net/?f=h%3D3.3%5C%20m)
- initial velocity of the child at the slide,
![v_i=0 m.s^{-1}](https://tex.z-dn.net/?f=v_i%3D0%20m.s%5E%7B-1%7D)
- final velocity of the child at the bottom of slide,
![v_f=3\ m.s^{-1}](https://tex.z-dn.net/?f=v_f%3D3%5C%20m.s%5E%7B-1%7D)
(a)
∴The initial potential energy of the child is converted into the kinetic energy at the bottom off the slide and a part of which is lost into friction generating heat between the contact surfaces.
Initial potential energy:
![PE=m.g.h](https://tex.z-dn.net/?f=PE%3Dm.g.h)
![PE=24\times 9.8\times 3.3](https://tex.z-dn.net/?f=PE%3D24%5Ctimes%209.8%5Ctimes%203.3)
![PE=776.16\ J](https://tex.z-dn.net/?f=PE%3D776.16%5C%20J)
Kinetic energy at the bottom of the slide:
![KE=\frac{1}{2} m.v^2](https://tex.z-dn.net/?f=KE%3D%5Cfrac%7B1%7D%7B2%7D%20m.v%5E2)
![KE= 0.5\times 24\times 3^2](https://tex.z-dn.net/?f=KE%3D%200.5%5Ctimes%2024%5Ctimes%203%5E2)
![KE= 108\ J](https://tex.z-dn.net/?f=KE%3D%20108%5C%20J)
(b)
Now, the difference in the potential and kinetic energy is the total change in the thermal energy of the slide and the seat of her pants.
This can be given as:
![U=PE-KE](https://tex.z-dn.net/?f=U%3DPE-KE)
![U=776.16-108](https://tex.z-dn.net/?f=U%3D776.16-108)
![U=668.16\ J](https://tex.z-dn.net/?f=U%3D668.16%5C%20J)
A three-dimensional miniature or life-size scene in which figures, stuffed wildlife, or other objects are arranged in a naturalistic setting against a painted background.
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