Questions 3-4 A 1kg ball is released from rest from an initial height of 1m, rolls down and is brought to rest from a spring as it
compresses a distance x as shown in the figure. Assume NO
energy losses to the surrounding environment:
lego
3. The kinetic energy of the cart at point B is nearly
(A) 5 (B) 10) (C) 20 J (D) 40 )
(E) 80J

there is no correct list among the choices you've provided.

the list might look something like this:

-- baby human

-- piccolo

-- flute

-- soprano singer

-- trumpet

-- tenor singer

-- trombone

-- baritone singer

-- baritone horn

-- bass singer

-- tuba

since i had to make up the list myself, i made it easy on myself, and i didn't try to shuffle the string instruments and woodwinds into it too.

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

b. preoperational

just took it

i dont have a visual in front of me, but i can you reason to try to get the right one. the graph should look like this, 0 to 6 there is a spike, 12 to 14 there should be a very low point. slight increase in the graph at 12 to 14, and flat 14 to 18

explanation: