A flower has 26 chromosomes in the sperm cell's nucleus. Describe the difference in chromosome number if the flower sperm cell undergoes mitosis and meiosis.

At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same