Category: Physics

How do you solve chain rule problems? Solution: To use the chain rule for this problem, we need to use the fact that the derivative of ln(z) is 1/z. Then, by the chain rule, the derivative of g is g′(x)=ddxln(x2+1)=1×2+1(2x)=2xx2+1. Where do we apply chain rule? The chain rule can be applied to composites of […]

What does 3NH4 mean? Explanation: There are 3 Nitrogen atoms and 12 Hydrogen atoms. The numbers 3 and 4 means that there are 3 Nitrogen atoms, and 12 Hydrogen atoms in the chemical formular (3NH4). Is K2SO4 polyatomic? Sulfate is a polyatomic ion. Is K2SO4 soluble or insoluble? K2 SO4 is very soluble in water. […]

How many codons are needed to make 4 amino acids? 64 How do the amino acids know where to drop off an amino acid? The bases are read in groups of threes, called codons. Transfer RNA (tRNA) molecules have anticodons (a sequence complementary to the codons). tRNA molecules look for a sequence which complements theirs […]

How do scientists study landslides? To be able to predict landslides, scientists have developed slope stability models to analyze the risk locally. More recently, NASA has created a preliminary algorithm to map landslide hazards globally using satellite measurements of rainfall, land cover and other surface variables. What do you think is the best way to […]

Is the COBE still in space? COBE’s Diffuse Infrared Background Experiment measured radiation from the formation of the earliest galaxies. After four years of observations, the COBE mission was ended, but the satellite remained in orbit. Is inflation good or bad for economy? Given how inflation erodes the purchasing power of our money, you may […]

What do you mean by internal forces? Internal forces are forces exchanged by the objects in the system. Internal forces may cause acceleration in different parts of the system but does not cause any acceleration in the center of mass of the entire system. Example: Friction is an external force if the body experiencing friction […]

Is MA a force? A: Newton’s second law is defined as F=ma, where F equals force, m equals mass, and a equals acceleration. So the force exerted on an object is equal to the mass of the object multiplied by the object’s acceleration. Does an object always move in the same direction as the net […]

Can we see real image with our eyes? We can see actual objects and real images due to the rays that are emanated from them, and virtual images due to the rays that seem to emanate from them. The rays marked in brown are (few of) the ones that get into our eye’s and help […]

Which of the following Python code will give Celsius when you give Fahrenheit F as? celsius = float(input(‘Enter temperature in Celsius: ‘)) # calculate temperature in Fahrenheit. fahrenheit = (celsius * 1.8) + 32. print(‘%0.1f Celsius is equal to %0.1f degree Fahrenheit’%(celsius,fahrenheit)) How do you add a degree in C++? If there is no degree […]

Did the US ever have a 49 star flag? 49-star American Flag On January 3rd, 1959, the 49 star flag became the official flag of the United States. Alaska was the 49th state formally granted statehood under an Executive order by President Eisenhower (January 3rd, 1959). What is the rarest American flag? These American Flags […]