3questions, 10 points a question, will give brainliest.
question 1: in which of these situations, is mechanical energy being conserved? (neglect, air resistance, friction and breaking) check all that apply.
question 1 options:

child on a swing

pendulum

bow and arrow

roller coaster

question 2: as an object falls to the ground, its potential energy is being converted to kinetic energy.

question 2 options:
true
false

question 3: calculate the potential energy stored in a 10 kg block, 5 meters above the ground.

question 3 options:

490 j

50 j

490 n

50 n

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:

their crystal patterns have been disrupted by stress

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it

both the fifth and fourteenth amendments of the united states contain a due process clause. while the fifth amendment describes a legal obligation of the federal government to not deprived of life, liberty or property without due process of law, the fourteenth amendment applies the same obligation to the states to guarantee that all of the states provide fair procedures as well.