25me figure this out

part one:
an 18.7 kg block is dragged over a rough, horizontal surface by a constant force of 104 n
acting at an angle of 26.6◦
above the horizontal. the block is displaced 51.9 m, and the
coefficient of kinetic friction is 0.223.
find the work done by the 104 n force. the acceleration of gravity is 9.8 m/s^2.
answer in units of j.

part two:
find the magnitude of the work done by the
force of friction.
answer in units of j.

pecialized keyboards

this is an example of "committed" time.

committed time, as contracted time, takes need over essential and available time since it is seen as profitable work. it alludes to the time allotted to keep up a home and family. at the point when a man is commuting using committed time this individual may feel that the drive is an obligation to family, for example, strolling youngsters to class or driving a mate to work. contracted and committed time clients may feel that their commute could really compare to the commute of important or leisure time clients on the grounds that their commute is profitable work. in this manner, they might be more disposed to pick a mechanized method of movement.  

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2