a body of mass x suspended at the 15cm mark of a ruler balanced it at the 30cm mark on a pivot . If the ruler has a mass of 36g and its centre of gravity is at 55cm mark, calculate the mass x and the distance point if the ruler from the zero end when the body is moved to the 25cm mark​

two charges are fixed in place on the x-axis as shown. the charge at x = 0 is negative and has magnitude q = 2 μcoulombs (1 μcoulomb = 10-6 coulombs). the charge at x = d, (d = +12 cm), is positive and has magnitude q = 4 μcoulombs. find a point x = xo along the x-axis at which the electric field is zero.

1= 26.17

2= 1.17

3=30.86

4=5.86

just took the assigment on edge

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).