Ateacher wants to perform a classroom demonstration that illustrates both chemical and physical changes. which would be the best demonstration that she could use?

Power can be defined as a. the distance over which work was done. b. how much work can be done in a given time. c. all the work in an given area. d. the energy required to do work.

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

A1000-kg car is moving at 30 m/s around a horizontal unbanked curve whose diameter is 0.20 km. what is the magnitude of the friction force required to keep the car from sliding?