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3 giorni fa · The angle of elevation of a cloud from a point 100 meter above the surface of a lake is ${30^0}$ and the angle of depression of its image in the lake is ${60^0}$ then the height of the cloud above the lake is:A) 100 mB) 50 mC) 200 mD) 150 m.
4 giorni fa · AB is a building of height 20m. On point B, a tower BC fixed. D is a point on the ground from which the angles of elevation to point B and C are $\alpha $ and $\beta $. Here $\alpha =30{}^\circ $ and $\beta =60{}^\circ $. To determine: The height BC of the tower. Let the height of the tower be h. Now in triangle ABD, we have $\tan \alpha ...
3 giorni fa · Elevation of boiling point is used to measure degree of dissociation or the molar masses of the solute. Note: Van’t Hoff factor is the ratio of the concentration of particles produced when the substance is dissolved and the concentration of the substance calculated using its mass.
5 giorni fa · WoT gun depression/elevation stats. Information is current as of patch 7.4; interestingly, some tanks have varying levels of gun depression depending on which guns are mounted.
5 giorni fa · Hint: We know that water flows from higher level to lower level without any external input. The main reasons why the water tanks are placed at the rooftop or usually at elevated height is as follows: 1. Water flows towards gravitational force. 2. Greater the height, greater is the pressure. The water stored in a tank is distributed by gravity.
4 giorni fa · A heat pump compresses gas to warm air and decompresses gas to cool air. Study with Quizlet and memorize flashcards containing terms like Which statement best describes air pressure at high altitudes?, What happens to pressure if volume decreases in a gas?, What happens to pressure if temperature increases? and more.
4 giorni fa · FIT-3 Chapter 5: Water Supplies for Fire Protection Systems. Get a hint. ________ are used to prevent water from flowing out of the fire protection system back into the water supply system. Click the card to flip 👆. Check valves. Click the card to flip 👆. 1 / 10.
