Category: Physics

What is the net force of a rock falling at constant terminal velocity? Objects falling through a fluid eventually reach terminal velocity . At terminal velocity, the object moves at a steady speed in a constant direction because the resultant force acting on it is zero. Why does a parachutist does not fall with constant […]

Is N bigger than 2 N? n! eventually grows faster than an exponential with a constant base (2^n and e^n), but n^n grows faster than n! since the base grows as n increases. Every term after the first one in n^n is larger, so n^n will grow faster. Does N 2 grow faster than 2 […]

What primary advantage if any does a ball bearing have over a roller bearing? As a general rule, ball bearings are used at higher speeds and lighter loads than are roller bearings. Roller bearings perform better under shock and impact loading. What are similarities and differences between a plain bearing and a roller bearing? Rollers […]

What are two most abundant elements in magma? Being that oxygen and silicon are the most abundant elements in magma, geologists define magma types in terms of their silica content, expressed as SiO2. These differences in chemical composition are directly related to differences in gas content, temperature, and viscosity. What is magma very short answer? […]

Why do we see sun before sunrise? The rising sun is visible to us before actual sun rise and after actual sunset because of the atmospheric refraction of light. The rays from the sun coming through space enter from rarer to the denser medium and hence bend slightly towards normal at each refraction and become […]

What are the similarities between mitochondria and chloroplast? Both the chloroplast and the mitochondrion are organelles found in the cells of plants, but only mitochondria are found in animal cells. The function of chloroplasts and mitochondria is to generate energy for the cells in which they live. The structure of both organelle types includes an […]

What happens when switch is closed in RC circuit? When the switch is closed the time begins at t = 0 and current begins to flow into the capacitor via the resistor. The current now flowing around the circuit is called the Charging Current and is found by using Ohms law as: i = Vs/R. […]

Which transmission characteristic is never fully achieve? bandwidth Which fiber transceiver is the same size as SFP? Which fiber transceiver is the same size as SFP transceivers, but can support network speeds over 10 Gbps? The SFP+ is the same module size as SFP; theoretical maximum transmission speed is 16 Gbps. Suppose you’re assisting with […]

Does adding more substrate increase rate reaction? The rate of formation of product now depends on the activity of the enzyme itself, and adding more substrate will not affect the rate of the reaction to any significant effect. The rate of reaction when the enzyme is saturated with substrate is the maximum rate of reaction, […]

What are different types of spectroscopy? Absorption spectroscopy. Astronomical spectroscopy. Atomic absorption spectroscopy. Circular dichroism spectroscopy. Electrochemical impedance spectroscopy (EIS) Electron spin resonance (ESR) spectroscopy. Emission spectroscopy. Energy dispersive spectroscopy. What is a real life application of spectroscopy? Spectroscopy is used as a tool for studying the structures of atoms and molecules. The large number […]