Demonstrate this law by performing a lab-like experiment. Follow these instructions: Draw a round target twice the size of the tennis ball on the piece of paper.
Then place it on the ground with drawing pins.
The aim of the experiment is to drop the ball from arm's height onto the target.
First do this by standing next to the target.
Next drop the ball while walking at different speeds.
Describe your observations and conclusions. Upload the pictures of the experiment.

Along wire of diameter 1 mm is submerged in an oil bath of temperature ∞ 31°c. the wire has an electrical resistance per unit length of 0.01 ω/m. if a current of 103 a flows through the wire and the convection coefficient is 500 w/m2·k, what is the steady-state temperature of the wire? from the time the current is applied, how long does it take for the wire to reach a temperature that is within 1°c of the steady-state value? the properties of the wire are 8000 kg/m3, 500 j/kg·k, and 20 w/m·k.