Questions 891–900 of 1772. Imported answers require independent review unless marked reviewed.

Topic practice 1772 questionsPage 90 of 178

Question 169

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In gradient wind balance, which of the following statement(s) is/are true for flow around a region of low pressure in the northern hemisphere?
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Question 170

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Which of the following statement(s) is/are true regarding biogeochemical cycle in the ocean?
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Question 171

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Consider the atmosphere to be a heat engine, which converts absorbed radiation to kinetic energy of winds. Let the global mean radiation absorbed be 200 Wm⁻². In steady-state, if the global mean kinetic energy dissipation is 10 Wm⁻², then the efficiency of the atmospheric heat engine is ________%. (Round off to one decimal place)

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Question 172

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A drifter on the surface of the ocean forms inertial oscillation. The speed of the drifter is 2 m s⁻¹ and the Coriolis parameter at the latitude is 2×10⁻⁴ s⁻¹. The radius of the inertial oscillation is ______ km. (Round off to the nearest integer)

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Question 173

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Consider a tornado in cyclostrophic balance. The tangential wind speed at a radial distance of 500 m from the center of the tornado is ______ m s⁻¹, if the pressure gradient at that location in the radial direction is 5 N m⁻³. Assume the density of air to be 1 kg m⁻³. (Round off to the nearest integer)

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Question 174

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Consider two weather stations A and B having the same altitude. Station B is 5 km north of Station A and is always 2 K warmer than Station A. A steady northerly wind blows at 1 m s⁻¹. The change in temperature at Station A in 2 hours is ________ K. (Round off to one decimal place)

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Question 175

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Assume the Earth is in radiative equilibrium with effective radiative temperature of 255 K. If the planetary albedo increases by 0.05, then the effective radiative temperature of the planet will be ______ K. (Round off to the nearest integer)
Given: Solar constant = 1370 Wm⁻² Stefan Boltzmann constant = 5.67×10⁻⁸ Wm⁻² K⁻⁴

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Question 1

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Gauri said that she can play the keyboard ______ her sister.
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Question 2

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A transparent square sheet shown above is folded along the dotted line. The folded sheet will look like ______.
Diagram for Engineering Sciences question 2

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Question 3

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If

is the angle, in degrees, between the longest diagonal of the cube and any one of the edges of the cube, then,

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