Hi there , i need your and i hope you can me !

1) what is the kinetic energy of an aircraft with a mass of 2.5*10^5 kg travelling at a speed of 3*10^2 m/s ?

2) what is the mathematical relationship between a^n and a^-n ? explain

you so much !

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?

Find the value of x in the diagram below. select the best answer from the choices provided

David is standing on the sixth rung of a ladder while painting his house. which expressions represent a change in david’s position of 2 rungs on the ladder? choose exactly two answers that are correct. a. 6+2 b. 6-2 c. 2x6 d. 6/2