1st change she can make exercise going to the gym lots of running. 2nd change better food choices grains, fruits, fish,chicken,vegetables.
There are lots:
Biology and Medicine - cloning and expression of human insulin in bacteria (stopped having to produce it from pig pancreases); Watson & Crick discovery of the structure of DNA; gene therapy in humans
Chemistry - determination of the exact number of molecules in a mole (Avagadro's number); discovery of radioactivity (Rutherford); the invention of nylon (DuPont); Boyle's law (behavior of gases)
The answer is m.
Centripetal force (F) is a force that makes body move around a circular curve. The unit of force is N (N = kg * m/s²).
It can be represented as:<span>
</span><span><span> <span> <span> <span> <span> <span> <span> <span> <span> <span> <span> <span> <span> <span> </span></span></span></span></span></span></span></span></span></span></span></span> <span> </span></span></span><span> </span></span><span>
where:
m - mass
v - velocity
r - radius of the curve
We have:
m = 1,200 kg
V = 20 m/s
F = 6,000 N = 6,000 kg * m/s²
We need radius of the curve:
r = ?
So, if </span><span> </span><span>, then:
</span><span> </span><span>
</span>⇒ <span> </span><span>
</span>⇒ <span> </span><span>
</span>⇒ <span> </span><span>
</span>⇒<span> </span><span> </span>
Answer:
D- all. .
Explanation:
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