30 Standard: 8.PS2.2 & 8.PS2.3 Luka pushes a box across the floor in the direction shown by the arrow in the diagram below: The direction of the friction force acting on the box is: AUp B Down C Right D Left

if the thermos has a vacuum innner, then heat through conv currents and conduction are reduced = vacuum flask

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:

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.