Answer: secured credit card
Step-by-step explanation:
90 or 100 something like that.
Answer:
The kinetic energy is 20,000\ J
Step-by-step explanation:
The kinetic energy of a body is defined as:

Where <em>m</em> is the mass of the roller coaster car
<em>s</em> is the speed and <em>k</em> is the kinetic energy
We know that 

Then the kinetic energy of the roller coaster car is:

Answer: SHOW THE TABLE PLZ and then i can answer. I don't know what this is.
Step-by-step explanation:
Answer:
-40
Step-by-step explanation:
I think that's the answer