During which sleep stage does dreaming usually occur? a. stage 3 b. stage 2 c. stage 1 d. rem

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.

The crank oa rotates in the vertical plane with a constant clockwise angular velocity ω0 of 5.6 rad/s. for the position where oa is horizontal, calculate the force under the light roller b of the 10.6-kg slender bar ab.

How many atoms of nitrogen are in the chemical formula ni(w on