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A steel aircraft carrier is 352 m long when moving through the icy North Atlantic at a temperature of 2.93 °C. By how much does the carrier lengthen when it is traveling in the warm Mediterranean Sea at a temperature of 23.8 °C?
A 265.0 kg block of ice at 0o C is placed in a large lake. The temperature of the lake is just slightly higher than 0o C, and the ice melts. What is the entropy change of the lake
An undersea research chamber is spherical with an external diameter of 3.90m . The mass of the chamber, when occupied, is 30800kg. What is the buoyant force on the chamber
a sailboat is traveling east at 5.9 . a sudden gust of wind gives the boat an acceleration 0.80 40 north of east.
In 1851 Jean Bernard Leon Foucault demonstrated the rotation of the Earth using a pendulum 11.0 m long, What was the period of oscillation of the pendulum
The time required for one complete cycle of a mass oscillating at the end of a spring is 0.25s. what is the frequency of oscillation
A tennis ball on Mars, where the acceleration due to gravity is 0.379 of a g and air resistance is negligible, How fast was it moving just after being hit
A 1035 kg car carrying four 78 kg people travels over a rough "washboard" dirt road with corrugations 5.0 m apart which causes the car to bounce on its spring suspension. The car bounces with maximum amplitude while its speed is 16 km/h. The car now ..
Two boats start together and race across a 56-km-wide lake and back. Boat A goes across at 52 km/h and returns at 56 km/h. Boat B goes across at 36 km/h, and its crew, realizing how far behind it is getting, returns at 79 km/h. Turnaround times are n..
a coil that has a resistance r and an inductance l has a power factor equal to 0.866 when driven at a frequency of
You throw a ball vertically upward from the edge of the roof of the Bisdorf building with a speed 15.0 m/s. Find the position and velocity of the ball 1.00 s after leaving your hand
With what minimum speed must you toss a 100 g ball II str aig ht up to just barely hit the I O-m-high ceiling of the gymnasium, With what speed does the ball hit the floor
a curve of radius 139 m is banked at an angle of 9deg. an 758-kg car negotiates the curve at 77 kmh without skidding.
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