1, 3, 5, 7, 9 are the possible digits
meaning you have 5! possible combinations or 120 combinations
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:

Using the factor label method, you would set up your ratio like so:
So 10 questions is 100% you missed 30% of the questions so you would do 100%-30% which is 70%
Answer: 1
Step-by-step explanation: