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Questions (27)
an atom is placed in a uniform magnetic induction B. such that its plane normal to the electron orbit makes an angle of 30
1 answer
833 views
from a group of 15candiatesu r choosing president vice president andsecretryto work on your sales in how many ways it can be
1 answer
380 views
calculate the length of a solid bar of 4cm diameter casted by melting solid cube its each sides is 22cm
1 answer
413 views
If the length of the fence of a trapezium shaped field ABCD is 130m and side is perpendicular to each of the parallel side AD
2 answers
627 views
if i am a poet, i would rite many poems.
st.paul is biggest church in chennai. he was so weak ,he could hardly stand. he has left
2 answers
429 views
if ypu informed i would have given my book
0 answers
329 views
William owes $9,000.00 to a friend who is charging him interest of 1.60% p.m. he is required to settle the amount with 2 equal
0 answers
684 views
William owes $9,000.00 to a friend who is charging him interest of 1.60% p.m. he is required to settle the amount with 2 equal
0 answers
599 views
Consider a rational consumer with a utility function given by U(x,m)=Aln(2x)+m. The consumer needs to decide how much of good x
1 answer
778 views
Consider a consumer who has an experienced utility function given by UEU(x,m)=2sqrtx+m. Let q denote the market price of good x,
0 answers
662 views
Consider the problem of a rational consumer with an experienced utility function given by 10ln(x)+m and a wealth level W=100.
2 answers
1,243 views
Imagine that you own a small business and that you have to decide how much of your product to sell every year, and which
7 answers
1,036 views
very large loop of metal wire with radius 1 meter is driven with a linearly increasing current at a rate of 200 amps/second. A
0 answers
552 views
In earlier learning sequences we described how a static magnetic field cannot change the speed (and therefore kinetic energy) of
0 answers
654 views
Many metals become superconductors (zero resistance, zero loss, zero heating) at low temperatures. If they are warmed above the
1 answer
900 views
Two long, parallel wires carry current in the x-y plane. One wire carries 30 A to the left along the x-axis. The other carries
1 answer
559 views
A metal wire has a resistance of 8.00Ω at a temperature of 20C. If the same wire has a resistance of 8.40Ω at 70C, what is the
1 answer
599 views
A potential difference of 12.0V is maintained across an electrical device with a resistance of 10.0Ω. What total charge passes
3 answers
519 views
three electric charges, 3e, 3e and 12e, where "e" is proton charge, are placed at three of four vertices of a square of side
0 answers
517 views
Consider an insulating sphere with 10 microCoulombs of charge uniformly distributed through its volume. The sphere is surrounded
0 answers
585 views
A spherical shell of uniform charge density σ has a circular hole cut out of it.What is the Electric Field at a radius just
1 answer
1,054 views
A spherical shell of uniform charge density σ has a circular hole cut out of it. What is the Electric Field at a radius just
0 answers
766 views
In this problem, we will carry out some steps of the quantum factoring algorithm for N=91.
(a) What is the period k of the
1 answer
707 views
Suppose we ran m steps of Grover's algorithm on some function f (which has one marked element y) and the resulting superposition
0 answers
380 views
Consider the Hamiltonian H=Z⊗3 acting on 3 qubits.
What is the ground energy of the system? (I.e. the lowest eigenvalue of H?)
1 answer
461 views
A box of mass 10kg starts from rest and slide down a plane angled at 45 degrees to the horizontal. the box slides 2m down the
2 answers
945 views
A 4kg box starts up a 30 degree incline with 128J of kinetic energy. How far will it slide up the plane if the co-efficient of
1 answer
560 views
Answers (15)
show that the root of the equation x^2+2x=2x(2a+2b+1)(2a+2b-1) are integers if a and b are integer
answer
given speed =distance /time =8m/s force = 2000N power =work /time=force *displacement /time =2000*8/1 =16000j/s
MC= 8 Av cost= (3q2+5q+300)/2
right for Q6!!!!!!!thankssssss
Yes, they are right! Have you the answers of question 5,6,7? Thanks very very much!
the right value is zero
It'swrong!!
d) is wrong!
13.86° 4.79 *10^6 m/s
I find 4.8C but it's wrong!
A metal wire has a resistance of 8.00Ω at a temperature of 20C. If the same wire has a resistance of 8.40Ω at 70C, what is the resistance of this wire in ohms when its temperature is −10C?
h-(2*ke*q*lambda)/(ks*l)
1.92*10^(-18)
3.6*10^7 N/C
