Abox is pulled up a rough ramp that makes an angle of 22 degrees with the horizontal surface. the surface of the ramp is the x-plane. what is the magnitude of the force of tension if the net force in the x direction of 98 n?
a.)57 n
b.)139 n 1
c.)78 n
d.)183 n
b 139

Aprotein molecule in an electrophoresis gel has a negative charge. the exact charge depends on the ph of the solution, but 30 excess electrons is typical. what is the magnitude of the electric force on a protein with this charge in a 1600n/c electric field? write in two significant numbers, and also in newton