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

Athin plate moves between two parallel, horizontal, stationary flat surfaces at a constant velocity of v = 7.5 m/s. the two stationary surfaces are spaced 4 cm apart, and the medium between them is filled with oil whose viscosity is 0.9 n·s/m2. the part of the plate immersed in oil at any given time is 2 m long and 0.5 m wide. if the plate moves through the mid-plane between the surfaces, determine the force required to maintain this motion. what would your response be if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top surface (h1)? if the plate moves through the mid-plane between the surfaces, the force required to maintain the motion will be n. if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top (h1) surface, the force required to maintain the motion would be n.

Suppose a wire with a current is pushed upward by a magnetic field. how would the wire move if the direction of the current reversed? explain your answer.

This is the number of complete movements of a wave per second.