is it true or false is so it is false
Answer:
<em>b. False</em>
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Explanation:
<em>The system of fraud is called 4-1-9 scam</em>. And yes, victims are always promised large sum of money to secretly help in moving a large sum of money.
Answer: genis view headset view
Explanation:
Normally you can't. You cannot tell if water has been frozen and then thawed.
Answer:
D. 4x as much
Explanation:
The answer is pretty simple. The question is asking about 10m/s and 20m/s right? Take a look at the energy at each point on the graph. At 10m/s the kinetic energy is 100 on the graph. At 20m/s the kinetic energy is 400. You'll notice that 100 x 4 is 400 - That's the answer.
You can also prove this mathematically. The formula for kinetic energy is

The question says: constant mass so we can ignore that for now.
(1/2) * 10^2 is (1/2) * 100 = 50
for the 20m/s ball it would be
(1/2) * 20^2 = 400 * 1/2 = 200
Once again, you see that it is 4x