A circular window of 30.0 cm diameter in a submarine can withstand a maximum force of 1.88 × 106 N. What is the maximum depth to which the submarine can go without damaging the window?
A) 750 m
B) 2.70 km
C) 945 m
D) 1.33 km
E) 1.20 km
B
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The solar system model of Copernicus is known as the ______________ model
Fill in the blank(s) with correct word
When a nucleus of a given isotope decays, it
A. cannot produce a daughter with the same mass number. B. always produces a daughter with a lower mass number. C. cannot produce a daughter with a lower mass number. D. cannot produce a daughter with a higher mass number. E. always produces a daughter with a higher mass number.
A tube bank consists of 30 columns of 3 cm diameter tubes, spaced 4.5 cm apart (center to center) in-line both ways. Ethylene glycol at 90ºC is to be cooled to 60ºC after passing over the tube bank at 2 m/s. Estimate the average tube temperature.
What will be an ideal response?
One long wire carries a current of 30 A along the entire x axis. A second long wire carries a current of 40 A perpendicular to the xy plane and passes through the point (0, 4, 0) m. What is the magnitude of the resulting magnetic field at the point y = 2.0 m on the y axis?
A. 4.0 ?T B. 5.0 ?T C. 3.0 ?T D. 7.0 ?T E. 1.0 ?T