Compared to an electron, which particle has a charge that is equal in magnitude but opposite in sign?
(1) an alpha particle (2) a neutron
(3) a beta particle (4) a proton

b. examine and describe cells

(b) which contains higher levels of vitamin b, oranges or spinach?

explanation:

you can eliminate a, c, and d because they are questions based on opinions.

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.