Suppose you are holding an air-filled ball of mass m = 0.3 kg into the water at a certain depth. When you release it, it will be accelerated upward. Three forces act on the ball after it is released: an upward buoyant force B =+574 N, the ball's weight W = mg, and a resistance force R = -280 N. What is the acceleration a (magnitude and direction) of the ball? (Note: boldface letters indicate vectors.)

your answer is c! hope this : )

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards

the journeys of marquette, joliet and la salle a) new france expand.

all three of these explorers explored the midwest and the area around the great lakes, which they subsequently claimed for france.

this was a big portion of territory and expanded new france which before then only consisted of quebec province in northeastern canada