This force can either push the block upward at a constant velocity or allow it to slide downward at a constant velocity. the magnitude of the force is different in the two cases, while the directional angle θ is the same. kinetic friction exists between the block and the wall, and the coefficient of kinetic friction is 0.310. the weight of the block is 55.0 n, and the directional angle for the force is θ = 50.0°. determine the magnitude of when the block slides (a) up the wall and (b) down the wall.

Part a)

Part b)

Explanation:

Part a)

If block is sliding up then net force must be zero and friction will be in opposite to the direction of motion of the block

so we have

Part b)

If block is sliding down then net force must be zero and friction will be in opposite to the direction of motion of the block

so we have

any one of the statements could be an accurate comparison. but the statement that would define the correct choice and seal the deal is not even on the list:

"the visibilities of vector-x and vector-y in the drawing provided with the question are identical and nonexistent."

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a  cell  functions.

explanation: