manu

This page lists questions and answers that were posted by visitors named manu.

Questions

The following questions were asked by visitors named manu.

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 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...

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?)

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 ho...

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 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?

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, t...

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 prod...

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 fo...

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 $...

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

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

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

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?

Answers

The following answers were posted by visitors named manu.

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

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?

I find 4.8C but it's wrong!

13.86° 4.79 *10^6 m/s

the right value is zero

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

right for Q6!!!!!!!thankssssss

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

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

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