Answer:
The kinetic energy of the roller coaster is 1600000 J.
Step-by-step explanation:
Given:
Mass of the roller coaster is 8000 Newton's and speed 20.0 meters/seconds.
Now, we need to find the kinetic energy 
of the roller coaster.
So, Mass of roller coaster (m) = 8000 N.
Velocity of roller coaster (v) = 20.0 m/s.
Now, putting the formula of kinetic energy:
Therefore, the kinetic energy of the roller coaster is 1600000 J.
The complete question required that we determine how far is the movie theater to the mall.
<h3>Distance between the movie theatre and the mall </h3>
According to the question;
- Upon representation of the movie theatre and mall position on the coordinate plane relative to the post office; we have;
- Movie theater, T = (5, 10)
- Mall, M = (9, 7).
The distance between the two points can therefore be evaluated by Pythagoras theorem as follows;
Distance, D² = (9-5)² + (7-10)²
Ultimately, the movie theater is 5 blocks away from the mall.
Read more on distance between two points;
brainly.com/question/23848540
Answer:
31°
Step-by-step explanation:
The theorem states that all angle sums of any triangle add up to 180°.
128 + 21 = 149, and to find ?°, subtract 149 from 180 to get 31°.
Yes, they are congruent. Congruent means that they are exactly equal in size and shape. The are both Right Triangles (you can tell by the 90 degree angle) and the lines on them are in the same spots, which means, line YZ is equal to line BC, and that line XZ is equal to line AC. I hope that helped! :)
