Determine the kinetic energy of a 1000kg rollercoaster car that is moving with a speed of 20.0 m/s

Which seasons are the northern and southern hemispheres experiencing in the image? it is summer in both the northern and southern hemispheres. it is summer in the northern hemisphere and winter in the southern hemisphere. it is winter in both the northern and southern hemispheres. it is winter in the northern hemisphere and summer in the southern hemisphere.

Energy flows from the producer level to the level. is called

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o