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
Many admins set their firewalls to drop echo-request packets to prevent their networks from being mapped via "Ping Sweeps".
A remote possibility is that there's too many hops between the source and target and the packet's TTL expires.
Answer:
1) We can get various types of information, knowledge.
2) We can communicate with each other no matter where they are if they have internet connection.
3) It can be used as a source of entertainment.
4) Through internet, we can work from home especially in this quarantine time.
5) Through internet, we can show our talent and skills.
Hope it helps :)
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