What is the intensity of a 40 dB sound? The Threshold of Hearing and the Decibel Scale The faintest sound that the typical human ear can detect has an intensity of 1*10-12 W/m2. How many times louder is 20 dB? For the decibel scale, that number is 10. A 20 dB sound is 10 times […]
How many tidal bulges are there in a day?
How many tidal bulges are there in a day? two tidal What causes tidal forces? Gravity is one major force that creates tides. In 1687, Sir Isaac Newton explained that ocean tides result from the gravitational attraction of the sun and moon on the oceans of the earth (Sumich, J.L., 1996). Why do tidal forces […]
What is the principle of calorimetry?
What is the principle of calorimetry? The principle of calorimetry indicates the law of conservation energy, i.e. the total heat lost by the hot body is equal to the total heat gained by the cold body. What is the calorimetry method? Calorimetry method Measure a volume of an acid and place into a polystyrene cup […]
What is the coldest month in Flagstaff AZ?
What is the operational definition of love?
What is the operational definition of love? 1) Love – To care, to support and guide others. 2) Population – the human reproduction. What is the operational definition of shyness? Shyness is the tendency to feel awkward, worried or tense during social encounters, especially with unfamiliar people. Some people’s shyness is so intense, however, that […]
What does a Maxwell-Boltzmann distribution illustrate?
What does a Maxwell-Boltzmann distribution illustrate? The Maxwell-Boltzmann distribution describes the distribution of speeds among the particles in a sample of gas at a given temperature. The distribution is often represented graphically, with particle speed on the x-axis and relative number of particles on the y-axis. Created by Sal Khan. How is Maxwell-Boltzmann distribution derived? […]
What are three destructive effects of runoff?
What are three destructive effects of runoff? Some other effects from stormwater runoff include: Instead it runs off hard surfaces and, in a heavy rain, can lead to flooding, erosion and property damage. Water pollution. Water becomes polluted as it runs across lawns, driveways and other hard surfaces, when it collects oil, gas, fertilizers, pet […]
How is aspartate Transcarbamoylase regulated?
How is aspartate Transcarbamoylase regulated? Regulation of De Novo Pyrimidine Biosynthesis In prokaryotic cells aspartate transcarbamoylase, an allosteric protein, is inhibited by the end product CTP and activated by ATP. Why is it important to regulate ATCase? The cell must precisely regulate the amount of CTP in the cell because making it can be energetically […]
How do you calculate the pressure of hydrogen gas collected over water?
How do you calculate the pressure of hydrogen gas collected over water? To obtain the gas pressure, subtract the vapor pressure of water from the total pressure. EXAMPLE: A 325 mL sample of gas is collected over water at 26oC and 742 mm Hg pressure. Calculate the volume of the dry gas at STP. The […]
Do charges move quickly through empty wires?
Do charges move quickly through empty wires? It’s a common misconception that charges slow down as they go through the filament of a bulb because the filament is thinner than the wires in the rest of the circuit. Animation showing that the current is the same even if the wires have different thicknesses because the […]