Is summer hotter in the Southern Hemisphere? One would think that southern hemisphere summers might be a little warmer. However, the southern hemisphere is predominantly water (the land/water ratio is 4/11). Water has a higher heat capacity than land, meaning that it requires more heat energy to increase its temperature than land needs. Is summer […]
How do you find the slope in a graph?
How do you find the slope in a graph? Using the Slope Equation Pick two points on the line and determine their coordinates. Determine the difference in y-coordinates of these two points (rise). Determine the difference in x-coordinates for these two points (run). Divide the difference in y-coordinates by the difference in x-coordinates (rise/run or […]
How do we know the sun rotates?
How do we know the sun rotates? The Sun rotates once every 24 days at its equator, but only once every 35 near its poles. We know this by watching the motion of sunspots and other solar features move across the Sun. What would happen if the sun stopped rotating? The gravitational attraction of the […]
Do we breathe nitrogen?
Do we breathe nitrogen? We actually breathe air. It contains many gases like nitrogen, oxygen, carbon dioxide and argon among many others. Although nitrogen is the largest component of the inhaled air, it is inert and has no effect on our body. And the air exhaled also contains nitrogen, oxygen, carbon dioxide etc. Is nitrogen […]
What is the difference between oscillation and frequency?
What is the difference between oscillation and frequency? Therefore oscillation is said to be a periodic motion, that gets repeated at regular time durations. Generally, a wave is measured on the basis of wave parameters which are nothing but amplitude, period, frequency, phase, etc….Comparison Chart. Basis for Comparison Period Frequency Unit Seconds Hertz Is a […]
Why does the anode always lose mass?
Why does the anode always lose mass? The anode is a reducing agent because its behaviour will reduce ions at the cathode. Mass decreases as the reacting anode material becomes aqueous. These ions are the oxidizing agent because by taking electrons, they cause the anode to be oxidized. Mass increases as aqueous ions turn to […]
What to do with baby squirrel fell out of tree?
How does the image of a concave lens always appear?
How does the image of a concave lens always appear? Plane mirrors, convex mirrors, and diverging lenses will always produce an upright image. A concave mirror and a converging lens will only produce a real image if the object is located beyond the focal point (i.e., more than one focal length away). 5. The image […]
What is the meaning of precession?
What is the meaning of precession? : a comparatively slow gyration of the rotation axis of a spinning body about another line intersecting it so as to describe a cone. What is an example of precession? Precession is a change in the orientation of the rotational axis of a rotating body. An important example is […]
What is the formula for short circuit current?
What is the formula for short circuit current? This applied voltage divided by the rated primary voltage (times 100) is the impedance of the transformer. Example: For a 480 Volt rated primary, if 9.6 volts causes secondary full load current to flow through the shorted secondary, the transformer impedance is 9.6/480 = . 02 = […]