A child of mass 21.7 kg takes a ride on an irregularly curved slide of height 747 m, as in
the figure below. The child starts from rest at
The acceleration of gravity is 9.8 m/s2
the top
10.0 points
ned playground slide begins
section and ends with a circu-
in the figure below,
h
W = mg
-3.9 m
If a frictional force acts on the child, what
is the magnitude of the mechanical energy
dissipated by this force, if the speed of the
child at the bottom is 9.2 m/s!
Answer in units of J.

Answer is in the photo. I can't attach it here, but I've uploaded it to a file hosting. link below! Good Luck!

cutt.ly/XzW3SUN

car a and b are moving in opposite directions

plz mark.me the brainliest i rlly need this kind of yours in exchange

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..