A heater is placed along the side of an aquarium. A convection current will transfer heat throughout the aquarium as___. A. Hot water rises and cold water sinks

B. Hot water sinks and cold water rises

C. Hot water spreads from the heater in all directions

D. Water rises and sinks in an ever-changing pattern

it is easily magnetized.

speed

ratio of distance traveled to time interval

net force

vector sum of forces on object

object

source of diverging light rays either luminous or illuminated

don't remove my answer im trying my best to answer them

explanation:

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