A piece of metal of unknown specific heat, weighing 2 kg and temperature 300°C, is dropped into 5 kg of water at 40°C. They finally reach thermal equilibrium at a temperature of 50°C. Calculate the unknown specific heat capacity? (Specific heat of water is 4 200 J/kg·0C)
Q: If A/m on plane z = 0, (a) Determine the current density, and Answer follow image.A...
A: The magnetic intensity H is given in the problem as H→=y i^-x j^from Ampere's circuital law in diff...
Q: Please solve A, B, and C
A: When two springs are tied together and a pulse is created at one end, the pulse moves towards the b...
Q: A particle, of mass m, is moving in one dimension under the influence of a conservative force with p...
A: Given data, Potential V(x) = x2 - x4
Q: Prove the following equation P,y(x,t)= py(x,t) with p=2 (2x-1) Knowing that y (x,t)=3e"
A: Here Px^=-i h2π∇→ . This is the momentum operator the wavefunction will be ψ(x,t)=3 e2πih2x-twhen th...
Q: An ideal voltmeter V is connectedto a 2.0 Ω resistor and a battery withemf 5.0 V and internal resist...
A: Given: An ideal voltmeter V is connected to a 2.0 Ω resistor and a battery with emf 5.0 V and intern...
Q: ) A model turbine is provide nd to develop 64 HP under a 4,000 rpm. Calculate the speci bine to deve...
A: Solution :Specific speed = Ns =N PH54 Where N is the running speed and P is the power , H is t...
Q: A parallel-plate vacuum capacitor has 8.38 J of energy stored in it. The separation between the plat...
A: We know that ,Energy stored in the capacitor is, U=Q2d2ε0Awhere charge on the plates remains constan...
Q: Since Vi=30 pV, Re=0.68 kn, B1=103 and B2=110, find the output voltage (Vo) of the given circuit (ro...
A: First we do the DC analysis of the circuit,
Q: What number of molecules is contained in a room 100 m3 in volume at a temperature of 17°C and a pres...
A: Note: As per the rules we can answer only first one, please post the other as the separate question....
Q: Help on question 3...
A: When a mass is attached to a spring, the spring experiences stretching or compressing based on the m...
Q: With the height of 5.5 feet express it in English system and SI system.
A: Given: Height is 5.5 feet.1 foot= 12 inches1 yard=3feet1 mile=5,280 feet Convert 5.5 feet to English...
Q: Modeled after the two satellites problem (slide 12 in Lecture13, Universal gravity), imagine now if ...
A: Total radial distance is, r=RE+h Therefore, distance of the satellite from the surface of the earth ...
Q: Determine the reactions at A and E if P = 500 N. 4000 N 30 B L--x 3 m E D -4 m- -4 m- P
A: Given Determine the reactions at A and E if P = 500 N, as following below.
Q: A spherical capacitor has vacuum between its conducting shells and a capacitance of 125 pF. The oute...
A: Given- Capacitance (C)= 125 pF = 1.25×10-10 F Potential (V)= 355 V Outer shell radius (rb ) = 9.00 c...
Q: Obtain expressions for the electric displacement vector, electric susceptibility, local field, Lore...
A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for you...
Q: (V.) Suppose a transverse wave has function D=4.0(mm)sin(2.0(pi)x-(pi)t), and pass by a medium trave...
A: The standard wave equation can be written as follows: y=Asinωt-kx Disclaimer: The first three part...
Q: Can water waves be reflected and refracted? Give examples.Does Huygens’s principle apply to water wa...
A: Yes water waves can be reflected and refracted as well. The example of the reflection is when a wate...
Q: 2) A very rough estimate for a star is given by the density profile: p1) = P. (1-) where p, is the c...
A:
Q: Problem 6: Consider two concentric cylinders each of length L. The radius of the inner cylinder is a...
A:
Q: A uniform film of TiO2 , 1036 nm thick and having index of refraction 2.62, is spread uniformly over...
A: Given, nf=nTiO2=2.62λa=520nm=520×10-9mng=1.52ti=1036nm=1036×10-9m The first ray experience a phase c...
Q: Question related to Quantum Mechanics : Problem 3.4
A: 3.4 (a). let A and B are two hermitian operators. For A and B to be Hermitian, AH=A and BH=B ...
Q: + 2e, mass m = 6.68 x 10-27 kg) traveling with constant kinetic energy 18 MeV carries a current of 0...
A:
Q: A mass of 1.42 Kg is connected to a spring of spring constant 8.71 N/m. An oscillation is started by...
A:
Q: The diameter of Mars is 6794 km, and its minimum distancefrom the earth is 5.58 * 10^7 km. When Mars...
A: Here, we look into the ray optics of concave mirror and its mathematical formulae to find the requir...
Q: The magnetic susceptibility of paramagnetic materials is quite strongly temperature dependent, but t...
A: The term magnetic susceptibility is the ratio of the magnetization to applied magnetizing field in...
Q: a) Obtain the time domain expression for the elut based phasor field expresion, E (z) ="a,E0e-im/2ej...
A: Given: Eω(z)=a^x E0 e-jπ2 eikz V/m
Q: The earth’s magnetic field points toward(magnetic) north. For simplicity, assume that the field has ...
A: The direction of Earth's magnetic field is given as, NORTH DIRECTION. There is no vertical component...
Q: Due to efficiency considerations related to its bow wake, the supersonic transport aircraft must mai...
A: We know that, The speed of sound in the air varies with the variation in the temperature. The supers...
Q: The side of a thin lens that faces the object is convex and has radius of curvature 25.0 cm. The oth...
A: Given, radius of convex lens, r1=25cm radius of concave lens, r2 =15cm refractive index, μ=1.55
Q: A concave mirror has a radius of curvature of 34.0 cm. (a) What is its focal length? (b) If the mirr...
A: (a) The radius of the curvature R of the concave mirror is always positive, therefore, the same is...
Q:
A: It is true that high surface tension is the property of water that allows the lucky fishes to stay o...
Q: (a) What accelerating potential is needed to produce electrons of wavelength 5.00 nm? (b) What would...
A: Given Wavelength = 5.00 nm
Q: I hope that the solution will be according to the following data: Vrpp = 2, RL = 2000, VIN = 22, Vz ...
A:
Q: An athlete slidesdown from rest 40.0meter along an icy hillwhich is 35 degrees fromthe horizontal. H...
A:
Q: A magnetic field of 37.2 T has been achieved at theMIT Francis Bitter Magnet Laboratory. Find the cu...
A: Given, Magnetic field ,B=37.2 T Radius of solenoid, r=2.40 cm=0.024 m Length of solenoid, l=32 cm=0....
Q: When an electron beam goes through a very small hole, it produces a diffraction pattern on a screen,...
A: Here, an electron beam goes through a very small hole, it produces a diffraction pattern on a scree...
Q: I am in doubt when I am doing this question. Explain for me what’s going clearly. Thank you!
A:
Q: Which celestial object contains more mass? O Star O Galaxy O Nebula Comet
A: Now, using the Kepler's planetary laws, we can write: Mass of star = Around 0.08-150 solar masses Ma...
Q: 3) A periodic continuous time signal, x(t) , is given as the figure below. x(t) -6-5-4 -3-2-1 0 a. E...
A:
Q: A 2.20 mF capacitor initially has charge 4.20 mC. You connect it in series with a 4.00 MΩ resistor a...
A: Given C=2.20mF=2.20x10-3F qo=4.20mC=4 20x10-3C R=4.00MΩ=4.00x106Ω At t=0 switch is closed.
Q: Question: Write about the theory and working principle of experiment “Charge on electron by Millikan...
A: Theory:In 1909, Robert Millikan and Harvey Fletcher conducted the oil drop experiment to determine t...
Q: an electron is projected with an initial speed vo=2.00*10^6 m/s into the uniform field between betwe...
A:
Q: Three identical resistors are connected in series. When a certain potential difference is applied ac...
A: Given data: The total power dissipated in series connection is P1=45.0 W. Let, R is the resistance...
Q: Problem 3.30 Derive the transformation from the position-space wave function to the “energy-space” w...
A: In terms of states of eigen states, the identity operator is denoted as, ∑nEn><En=I The operat...
Q: The ends of the 0.44-m bar remain in contact with their respective support surfaces. End B has a vel...
A: We derive the relation between the motion of given points and thereby compute their angular accelera...
Q: A hydrogen atom is in a state with energy -1.51 eV. In the Bohr model, what is the angular momentum ...
A: Given E=-1.51eV
Q: List out the material required in the experiment to show that the electric resistance depends upon t...
A:
Q: How to find Repeatability Weight (w) (gram) Vo Try (n) (V. – AVG)² (Volt) 1 50 0.1 2 50 0.15 3 50 0....
A: Use any scientific calculator to calculate sum and average values.
Q: Q5- Choose the correct coordinates of the centre of gravity of the following tetrahedron which has d...
A: Given that,The density of the tetrahedron in the centre of gravity: ρ(x,y,z) = x2yzThe above eqn is ...
Q: The force F in the figure keeps the 7.34 kg block and the pulleys in equilibrium. The pulleys have n...
A:
|
1. |
A piece of metal of unknown specific heat, weighing 2 kg and temperature 300°C, is dropped into 5 kg of water at 40°C. They finally reach thermal equilibrium at a temperature of 50°C. Calculate the unknown specific heat capacity? (Specific heat of water is 4 200 J/kg·0C) |
|
|
|
A) 360 J/kg·0C |
B) 380 J/kg·0C
|
|
|
C) 400 J/kg·0C |
D) 420 J/kg·0C |
Step by step
Solved in 2 steps
