T² caries directly as R³ .
This is Kepler's 3rd law of planetary motion .
Hi!
The energy of the block is 4 m/s
To calculate this, you need to use the equation for
kinetic energy. The block is sliding (i.e. it's moving). If the object is sliding across a level surface, the only energy it has is kinetic energy, because
there is no change in potential energy (which changes with height). So, the mechanical energy will be pure kinetic energy. The equation is the following, derived from the expression for kinetic energy:

Have a nice day!
I'm not exactly sure but I'm thinking that it's the last one. Sorry if I'm wrong
Answer:
velocity and displacement answer
Explanation:
thanks me