<h2>Hello!</h2>
The answer is: A. 19.3 joules
<h2>
Why?</h2>
Since it's an elastic collision, the kinetic energy after and before the collision will be the same.
Kinetic energy can be calculated using the following equation:

Where:

So,
First object, (going to the right):


Second object:, (going to the left):


Remember,

Hence,
The total kinetic energy after the collision will be:

The total kinetic energy after the collision is 19.3 joules (rounded to the nearest tenth)
Have a nice day!
Answer:4kg
Explanation:
acceleration due to gravity(g)=10m/s^2
Weight(w)=40N
Weight=mass x g
40=mass x 10
Divide both sides by 10
Mass =40/10
Mass=4kg
Two properties that show that the drink is a fluid/liquid include its retention of volume and its conformation to the shape of its container.
Answer:
The dilatation is 3 because the <em>separation </em>between the dilatation center C and P grows by that factor of 3.
Explanation:
- Between C and P, the separation is |5-1| = 4 in x-axis and |2-4| = 2 in y-axis
- Between C and P', the separation is |13-1| = 12 in x-axis and |-2-4| = 6 in y-axis.
Comparing the separation on each direction, 12/4 = 3 and 6/2 = 3. Therefore, that's the dilatation value.
Alternatively, by computing the distances between the points
