When a bimetallic strip is heated, the strip will bend toward the side
A)
with the larger coefficient of linear expansion.
B)
with the smaller coefficient of linear expansion.
C)
with the higher temperature.
D)
with the lower temperature.
E)
depends of the method of heating
B
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The gravitational acceleration on a planet's surface is 16.0 m/s2. What is the gravitational acceleration at an altitude of one planet diameter above the SURFACE of the planet?
A) 5.33 m/s2 B) 1.60 m/s2 C) 1.78 m/s2 D) 4.00 m/s2 E) 8.00 m/s2
A 120 N force is applied at an angle of 30.0 degrees above the horizontal to a 4.00 kg box. The box moves a horizontal distance of 8.00 meters. The change in the kinetic energy of the box is
A. 667 J. B. 750 J. C. 831 J. D. 890 J. E. 920 J.
The heat transfer rate from hot air by convection at 100°C flowing over one side of a flat plate with dimensions 0.1-m by 0.5-m is determined to be 125 W when the surface of the plate is kept at 30°C. What is the average convective heat transfer coefficient between the plate and the air?
GIVEN
• Flat plate, 0.1-m by 0.5-m, with hot air flowing over it
• Temperature of plate surface (Ts) = 30°C
• Air temperature (T?) = 100°C
• Rate of heat transfer (q) = 125 W
FIND
• The average convective heat transfer coefficient, hc, between the plate and the air
ASSUMPTION
• Steady state conditions exist
SKETCH
Uranus rotates _______________ degrees from the _______________ to its orbit
Fill in the blank(s) with correct word