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INSTANT ANSWER

a) If \( \cos ^{-1}\left(\frac{y}{b}\right)=\ln \left(\frac{x}{n}\right)^{n} \), check whether or not \( x^{2} y_{n+2}+(2 n+1) x y_{n+1}+n^{2} y_{n}=0 \). b) Evaluate \( \int \frac{\mathrm{dx}}{(\mathrm{x}-1)^{2}\left(\mathrm{x}^{2}+4\right)} \). 3

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INSTANT ANSWER

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Supreeta N

Numerade educator

A person sees a girl in his car’s rear-view convex mirror which has a radius of curvature equal to 2.00 m. The girl is 5.00 m from the mirror and is approaching 3.50 m/s. How fast is the image of the girl moving relative to the mirror?

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Aparna Shakti

Numerade educator

7.1 ? 3.0 ? 7.1 ? 4.1 ? 1.4 ? 11.0 ? 9.00 V 3.0 ? Find the current in the 1.4 ? resistor.

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Supratim Pal

Numerade educator

Suppose you touched a pith ball suspended from an insulating string to a charged Teflon rod. You then made a second pith ball touch the first one with no other objects nearby. You then put the top of the strings next to each other. The two pith balls would be separated by 2 cm. The mass of each pith ball is 0.1 g and the length of each of the string is 20 cm. (ignore the mass of the strings) What is the magnitude is the electrostatic force on one of the pith balls?

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Timothy James

Numerade educator

What is the force constant k, if the separation of the two vibrational levels in HBr is 0.33 eV? (m Boron = 10.8 u)

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Ankur S

Numerade educator

for brewster's angle, what is the refractive index of the medium if angle of refraction is 30 degrees?

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Ivan Kochetkov

Numerade educator

A bus travels between two bus stands 0.60 km apart. The bus accelerates when leaking the first bus stand, it accelerates for 10.0sat 1.0 m/s and then travels at a constant speed until it is near the second station, it deaccelerate the bus at 2.0 m/s² in order to stop at the second bus stop. Calculate the total time it takes to travel from one bus stand to second.

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Timothy James

Numerade educator

An electron is moving with speed 5.0×10^6 m/s due south. This electron enters into a region of uniform electric field E = 3.0×10^4 V/m and a uniform magnetic field B=0.080T both are directed due east. What is the electromagnetic force on the electron?

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Jenny Wu

Numerade educator

Use the following information to answer the next question Multiple alleles control the coat colour of rabbits. - The dominant allele, C, produces grey colour. - The Cch allele produces silver grey (chinchilla) colour when homozygous. - The Ch allele is recessive to both the full colour allele and the chinchilla allele. - The Ch allele produces a white colour with black extremities (Himalyan) - The Ca allele is recessive to all other alleles, and produces no pigment (albino). The dominance hierarchy is C > Cch > Ch > Ca. The table below provides the possible genotypes and phenotypes for coat colour in rabbits. Notice that four genotypes are possible for full-colour but only one for albino. Phenotypes: Full Colour; Genotypes: CC, CCch, CCh, CCa Phenotypes: Chinchilla; Genotypes: CchCch Phenotypes: Light grey; Genotypes: CchCh, CchCa Phenotypes: Himalayan; Genotypes: ChCh, ChCa Phenotypes: Albino; Genotypes: CaCa 5. In a cross, a full colour rabbit (CCa) is mated to a light grey rabbit (CchCa). Calculate the theoretical probability of this cross producing each of the following phenotypes shown below. Record your answers based on your punnett square, if there are no phenotypes able to be expressed record that value as 0. Full Color | Chinchilla | Light Grey | Himalayan | Albino Your answer:

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Gayatri N.