A constant net force of 200 Nis applied to accelerate a cart from rest to a velocity of 40 m/s in 10 s. what is the mass of the cart

M=50kg

Explanation:

F=200N  V=40ms⁻¹  t=10s

a=v-u/t

a=40-0/10

a=4ms⁻²

F=ma

200=m×4

m=200/4

m=50kg

e

explanation:

the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.