Heating Curve of Water х
Y
100
Temperature (Cº)
0
V
w
U
Heat Added (J)
For the above heating curve of water, match the corresponding line segments to their description
U-V
V-W
VW-X
1. Heating of ice
II. Melting of ice
Ill. Heating of Water
V Vaporization of water
V. Heating of steam
~ X-Y
VYZ
QUESTION 21

How are positive ions different from neutral atoms

Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s

When solid surfaces slide over each other the kind of friction that occurs is called friction