How does tilt affect our seasons? But Earth’s distance from the sun doesn’t change enough to cause seasonal differences. Instead, our seasons change because Earth tilts on its axis, and the angle of tilt causes the Northern and Southern Hemispheres to trade places throughout the year in receiving the sun’s light and warmth most directly. […]
What is is the perceived frequency of a sound wave?
What is is the perceived frequency of a sound wave? The frequency of sound waves is measured in hertz (Hz), or the number of waves that pass a fixed point in a second. Human beings can normally hear sounds with a frequency between about 20 Hz and 20,000 Hz. Sounds with frequencies below 20 hertz […]
Which is the perpetual source of energy?
Which is the perpetual source of energy? Perpetual energy may refer to: Perpetual motion, the property of an imaginary device that, once started, continues to move forever with no input of external energy. Renewable energy, energy collected from resources that are naturally replenished on a human timescale. Is gravity perpetual motion? It is true that […]
What is the process of conducting research?
What is the process of conducting research? Conducting research is an inquiry-based process that involves identifying a question, gathering information, analyzing and evaluating evidence, drawing conclusions, and sharing the knowledge gained. The ability to conduct research is a critical skill students need to be college and career ready. What are the components of research process? […]
Are the characteristics of earth interrelated with one another?
Are the characteristics of earth interrelated with one another? Answer. Answer: The earth is a system of interconnected dependencies. For example, the type of weather that we have is dependent upon the energy output of the sun, the radius of the earth’s orbit about the sun, the rate of spin of the earth, and the […]
Why are there only odd harmonics?
Why are there only odd harmonics? When are they a problem Most electrical loads (except half-wave rectifiers) produce symmetrical current waveforms, which means that the positive half of the waveform looks like a mirror image of the negative half. This results in only odd harmonic values being present. Why 3rd harmonics is dangerous? The third […]
Why a Dyson sphere is impossible?
Why a Dyson sphere is impossible? Maddox points out that a Dyson sphere is physically impossible. To keep this shell in orbit around the Sun at any distance in the Habitable Zone would require some force counteracting gravity and pushing outwards on the sphere. In stars, this is radiation pressure. Is the Death Star a […]
How does tectonic uplift occur?
How does tectonic uplift occur? Uplift, in geology, vertical elevation of the Earth’s surface in response to natural causes. Uplift of the Earth’s surface also has occurred in response to the removal of Pleistocene ice sheets through melting and wastage. What is the difference between uplift and subsidence? Terms in this set (2) What is […]
What determines if a bond is covalent or ionic?
What determines if a bond is covalent or ionic? Compounds containing two elements (so called binary compounds) can either have ionic or covalent bonding. If a compound is made from a metal and a non-metal, its bonding will be ionic. If a compound is made from two non-metals, its bonding will be covalent. Why KCl […]
What is the electron carrier for photosynthesis called?
What is the electron carrier for photosynthesis called? NADPH What substances are recycled between photosynthesis and cellular respiration? The four substances recycled during photosynthesis and respiration are: carbon dioxide (CO2), which is emitted as waste in cellular respiration and used by plants to make glucose, oxygen (O2), which is emitted as waste by plants and […]