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calculate the mass of titanium (0.125 cal.g * C) that requires 75.5 cal to heat the metal from 20.5 to 32.0
Water is flowing in a hose with a velocity of 1.5 m/s and a pressure of 3 kPa. At
the nozzle the pressure decreases to atmospheric pressure (101300 Pa), there
is no change in height. Use the Bernoulli equation to calculate the velocity of the
water exiting the nozzle. The density of water is 1000 kg/m3 and gravity g is 9.8
m/s2.
Draw Dienes block to show how to find the solutions to
78 + 56
The following were obtained by applying Kirchoff’s laws to an electric circuit
2IA +IB −IC = −8
−IA +IB +IC = 3
−2IA +4IC = 18
P(z < -0.73)
P(z > 2.92)
P(z < -0.73)
P(0 < z < z⁰)=0.1700
P(1.12 < z < 1.39)
A balloon is fitted over the open end of a glass beaker that contains water.
The beaker is placed over a flame, which heats the water. At the same time,
the balloon is squeezed, so that it deflates. What are the correct signs for the
heat and work changes to the beaker and balloon system?
O A. -Q.+w
O B. +Q,+W
O C. -Q,-W
O D. +0. -w
