Kinetic energy is greatest at the lowest point of a roller coaster and least at the highest point
This contraption is a lot of fun, and you really should try it
some time.
The sound waves move from one can to the other one
by traveling through the string.
The acceleration of gravity on Mars is about 3.7 m/s². (b)
So anything located on the surface of Mars weighs about 38% of what it would weigh if it were on Earth.
Answer: Double-decker buses have heavy weights attached to their undersides. b The crane has a heavy concrete block attached to one end of its arm, ant others placed around its base.
