Manu

Most popular questions and responses by Manu
1. math

Factorise by splitting the middle term:- x^2-120xy-625y^2

2. Physics

The steam point and the ice point of a mercury thermometer are wrongly marked as 92 and 2 resp. The correct temperature read by this thermometer is

3. physics

Given a slab with refractive index n=1.33 and incident light striking the top horizontal face at angle i.The maximum value of i for which total internal reflection occurs is:

4. physics

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 outside the sphere, directly over the center of the circular, cut-out hole?

5. physics

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 outside the sphere, directly over the center of the circular, cut-out hole? Type "sigma" for σ and "epsilon_o" for ϵo. HINT: the

6. physics

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 plane before it encounters a spring with constant k=500 N/m which causes it to come to rest. What will the maximum compression of

7. math

Factorise:- 27p^3-1/216-9/2p^2+1/4p

8. economic math

Imagine that you own a small business and that you have to decide how much of your product to sell every year, and which technology to use to produce it. Your market research suggests that the price at which you will be able to sell each unit of your

9. magnetic field

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 50 A to the right along a parallel line at y = 0.28 m. At what y-axis position in meters is the magnetic field equal to zero?

10. physics

Consider an insulating sphere with 10 microCoulombs of charge uniformly distributed through its volume. The sphere is surrounded by a conducting spherical shell that has a total charge of -3 microCoulombs. Outside the conucting shell is an insulating shell

11. Physics

a ball is tossed from an upper story window of a building given an initial velocity of 8m/s at an angle of 20 below the horizontal.it strikes the ground 2seconds later. how far horizontaly from the base of the building does it strike the ground? find the

12. economics math

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 to buy given the following pricing rule: the first 10 units sell at a price of \$2 p/unit, additional units sell at a price of \$3

13. economics math

Consider the problem of a rational consumer with an experienced utility function given by 10ln(x)+m and a wealth level W=100. Suppose that the market price for good x is p=\$2 per unit. You are asked to analyze the impact on the consumer's demand of the

14. Math

The volume of a sphere is increasing at the rate of 5 cm.cm.per second .Find the rate of increase of the radious and surface area when the radious is 6cm.

15. physics

three electric charges, 3e, 3e and 12e, where "e" is proton charge, are placed at three of four vertices of a square of side 3cm. Calculate the electric field in the center of the square.

16. physics

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?) What is the dimension of the ground energy subspace? (I.e. multiplicity of that eigenvalue?)

17. maths

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 and BC.if BC=54m ,CD=19m and AD=42m, find the area of the field.

18. math

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 payments, one today and the other in 2 months. Calculate the size of the payments using 2 months as the focal date. Round your

19. physics

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 periodic superposition set up by the quantum factoring algorithm if it chooses x=8? I.e. what is the period of f(j)=8j(mod91) (b)

20. physics

Suppose we ran m steps of Grover's algorithm on some function f (which has one marked element y) and the resulting superposition was exactly |y⟩. If we run for m+1 additional steps (i.e. total of 2m+1 steps from the initial state), what is the resulting

21. physics

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 friction is 0.3?

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?

A potential difference of 12.0V is maintained across an electrical device with a resistance of 10.0Ω. What total charge passes through a cross section of wire attached to this device over a period of 4.00s?

A radioactive isotope, used in the agricultural industry has a half life of 8 days. On application, the radiation is emitted is measured at 12500 counts per sec (cps). If the area that it is applied to cannot be used until the radiation strength is less

25. math

Factorise:- 25a^2-35a+12

26. maths

calculate the length of a solid bar of 4cm diameter casted by melting solid cube its each sides is 22cm

27. confederation

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 payments, one today and the other in 2 months. Calculate the size of the payments using 2 months as the focal date. Round your

28. Chemistry

An organic acid has a percentage composition by mass of C 41.4%, H 3.4%, and O 55.2%. A solution containing 0.250g of the acid, which is dibasic required 26.60 cm cubed of NaOH solution (0.20 mol.dm -3) for neutralisation. Calculate the empirical formula,

29. economics math

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, and assume that it remains fixed throughout the problem. The company selling the good x starts an advertisement campagin that

30. magnetism

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 very small metal wire loop with radius 5 centimeter is positioned a small distance away with its center on the same axis (the

31. magnetism

In earlier learning sequences we described how a static magnetic field cannot change the speed (and therefore kinetic energy) of a free charged particle. A changing magnetic field can, and this is one way particle beams are accelerated. Consider free

32. magnetism

Many metals become superconductors (zero resistance, zero loss, zero heating) at low temperatures. If they are warmed above the critical tempareature, the superconductivity is lost. Also, if the metal experiences a magnetic field above a critical value,

33. Social science

Write a diary entry relieving your days glory as Napoleon in exile at st.helena

34. physics

an atom is placed in a uniform magnetic induction B. such that its plane normal to the electron orbit makes an angle of 30 degrees with the magnetic induction the torque acting on the orbiting electron?

35. maths

from a group of 15candiatesu r choosing president vice president andsecretryto work on your sales in how many ways it can be done

36. english

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 his job,isnt it? i want the correct answers of these sentences

37. english

if ypu informed i would have given my book

38. Algebra 1 a

Need help to solve can anyone help me please 6x-9y = 25.5 7y-2x =-10.0 solve the elimination method

39. science

is this true? the maximum density of water is maximum at 0 degree c

40. science

why well is built in a shape of circle?

1. physics

given speed =distance /time =8m/s force = 2000N power =work /time=force *displacement /time =2000*8/1 =16000j/s

posted on April 15, 2018
2. Maths

0 meter

posted on March 19, 2017
3. Social science

I m exiled here in the island of st.helena

posted on June 28, 2016
4. Economics

MC= 8 Av cost= (3q2+5q+300)/2

posted on March 7, 2016
5. CALCULUS ECONOMICS

right for Q6!!!!!!!thankssssss

posted on March 23, 2014
6. CALCULUS ECONOMICS

Yes, they are right! Have you the answers of question 5,6,7? Thanks very very much!

posted on March 23, 2014
7. economic math

the right value is zero

posted on January 20, 2014
8. magnetism

It'swrong!!

posted on December 1, 2013
9. Physics -Solinoid

d) is wrong!

posted on December 1, 2013
10. magnets

13.86° 4.79 *10^6 m/s

posted on November 20, 2013

I find 4.8C but it's wrong!

posted on November 13, 2013

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?

posted on November 12, 2013

h-(2*ke*q*lambda)/(ks*l)

posted on November 10, 2013
14. physics

1.92*10^(-18)

posted on November 10, 2013
15. physics

3.6*10^7 N/C

posted on November 10, 2013