This is really important and i wanna understand it's just too complicated for

a physics student carries a model rocket from his car 150. m n along a sidewalk and 200. m e into a field to the launch site. he then launches the rocket to an altitude of 500. m. find the rocket’s distance from the car when it reaches its highest altitude.

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 710 n/m. it is initially at rest on an inclined plane that is at an angle of θ = 23° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk = 0.19. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. a) what is the block's initial mechanical energy? b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

Aboy with a mass 25 kg climbs into a small tree. he sits on a branch that is 2.o m above to the ground.what is his gravitational potential energy above the ground?

Which type of energy would have nothing to do with ironing clothes? a. heat b. chemical c. electrical d. mechanical