Which headings best complete the chart?
Sunidhi made a study chart about changes in states of
matter
X
Y
I
melting
sublimation
freezing
deposition
O X Solid Directly to Liquid
Y Liquid Directly to Solid
O X Liquid Directly to Solid
Y Solid Directly to Liquid
OX: Heat Is Released
Y Heat Is Absorbed
X Heat Is Absorbed
Y Heat Is Released

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground

Which describes an object in projectile motion? check all that apply. a.gravity acts to pull the object downb. the object moves in a straight path. c.the forward velocity of the object is 0 m/s. d.the object’s inertia carries it forward. e.the path of the object is curved.

Aballoon is rising vertically upwards at a velocity of 10m/s. when it is at a height of 45m from the ground, a parachute bails out from it. after 3s he opens his parachute and decelerates ata a constant rate 5m/s. when. (a) what was the height of the parachutist above the ground when he opened his parachute? (b)how far is the parachutist from the balloon at t=3s? (c)with what velocity does the parachutist hit the ground? (d)after how long does the parachutist hit the ground after his exist from the balloon?