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Questions (19)
torque to move a block of m=200kg for 10m at an angle of 25 degree with a speed of 20m/s.
1 answer
390 views
What is the unit vector in R^2 which makes an angle of π4 with both the x- and y-axes?
1 answer
389 views
The mean distance of the sun from the sun is 150 million kilometres.Express this in scientific notation.
1 answer
517 views
The mean distance of the sun from the sun is 150 million kilometres.Express this in scientific notation.
1 answer
494 views
A pressure vessel contains a large volume of CO2 gas at 10 atm pressure. A membrane composed of a poly(ether ketone) polymer
10 answers
524 views
A photon interacts with a ground state electron in a hydrogen atom and is absorbed. The electron is ejected from the atom and
2 answers
536 views
Silicon (50 g) has been doped with 27 mg of antimony (Sb). Determine the concentration of free charge carriers (carriers/cm3) at
1 answer
617 views
A photon interacts with a ground state electron in a hydrogen atom and is absorbed. The electron is ejected from the atom and
6 answers
593 views
The vacancy fraction of a particular metal is found to double as the temperature of the metal is increased from 700 degrees C to
2 answers
493 views
Calculate the surface energy of the (100) surface of niobium. The enthalpy of atomization of niobium is 745 kJ/mole. Express
12 answers
514 views
Shown above are images of two amino acids, along with the pKas of each of their titrateable groups.
(a) Calculate the isoelectric
4 answers
444 views
Answer the following questions by referencing the six stress-strain curves below.
(a) Which of the stress-strain curves are for
8 answers
555 views
xplain why the value of the band gap energy, Eg, decreases in the following homologous series:
Cdiamond=5.4 eV; Si=1.1 eV;
3 answers
655 views
The fictitious compound, pandemonium fluoride (PnF2) has a Ksp value in water of 3.091×10−9M3 at room temperature. Calculate
1 answer
605 views
The solubility of the fictitious compound, administratium fluoride (AdF3) in water is 3.091×10−4 M. Calculate the value of
0 answers
449 views
The solubility of the fictitious compound, administratium fluoride (AdF3) in water is 3.091×10−4 M. Calculate the value of
0 answers
461 views
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature.
4 answers
470 views
to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon
3 answers
602 views
an object travels in a straight line at a constant acceleration for 6 seconds.in the first 2 seconds it travels 18 metres and in
3 answers
1,082 views
Answers (10)
p(p+3q)+q^2(1+2q-2)+4yz
b)deadweight loss effect
Thanx someguy
Explain from the 4 reasons given: a b c or d ? thanx
Thanx mate!
Thanks mate!!!
Agree to Yamy
Its not right
Chemical analysis of a silicon crystal reveals gallium at a level of 3.091×10−5 atomic percent. Assuming that the concentration of thermally excited charge carriers from the Si matrix is negligible, what is the density of free charge carriers (free
thnx guyz !!!!!!!!
