Keesha conducts an experiment by pouring equal amounts of boiling water into four containers. the containers are the same size and shape, but they are made of different materials. the chart lists the containers according to their materials.

using protective gloves, keesha carefully touches each container immediately after pouring the water. which container was likely the hottest?
w: foam
x: glass
y: plastic
z: stainless steel

How many seconds does it take a pebble released from rest off a bridge to fall 29.4 m ? what is the pebble's speed when it has fallen 29.4 m ?

2.22/3.33 points | previous answers tamucolphysmechl1 4.pre.002. ask your teacher my notes question part points submissions used on a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 2.40 m/s. (a) what are the magnitude and direction of the velocity of the red glider after the collision? magnitude 3.33 m/s correct: your answer is correct. direction correct: your answer is correct. (b) is this collision elastic?

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?