Running along a rectangular track 50m × 40 m you complete one lap in 100 s. What is your average velocity for the lap ?

Explain in physical terms how a microwave oven works. what would happen when you put a conductor in the microwave oven? explain.

Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies.

According to valence bond theory, which orbitals overlap in the formation of the bond in hf according to valence bond theory, which orbitals overlap in the formation of the bond in hf 2s on h and 2p on f 1s on h and 2s on f 1s on h and 1p on f 1s on h and 2p on f 1s on h and 3p on f