Can someone me ! someone has yet to answer my questions! i will greatly appreciate it! (anxious)

In a vernier instrument the main scale is in 1/2 mm divisions .vernier is made by redividing 19 such divisions into 20 equal parts. calculate the least count of the instrument.

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?

What are the similarities & differences between a thermistor and a light dependent resistor in physics?