5. Perform the following operations. Express each answer in scientific notation.
a. (1.54 x 10 -2 g) + (2.86 x 10-1 g)
b. (7.023 x 109 g) -(6.62 x 107g)
c. (8.99 × 10 -4 m) x (3.57 x 104 m)
2.17 x 10-3g
d.
5.002 x 104 mL

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current

yes

ya te ayud espera

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.