Ex. 125 A body cools from 75°C to 55°C in 10 min when the temperature of the surrounding is 31 °C, at what average temperature will its th rate of cooling be that at the start ?
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A: Angle is 30° ( as the direction of rotation is not specified, I'm assuming all the rotation are Coun...
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A: Given: The electric field is E→=w1y2i^+w2z2j^+w3x2k^ Here, w1=9 NC.m2,w2=10 NC.m2,w3=10 NC.m2. Th...
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A: Given that,Force, F=105 dynes=105×10-5 Ndisplacement, x=2 cm=2×10-2 mWe know that,Spring constant, k...
Q: The circuit in the figure is given as R1= 12, R2=2, R3= 32, R4= 4 and R5 =5 and e = 8,4 V. Find the ...
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Q: An infinitely long line charge with uniform positive charge density A1 lies on the y axis as shown i...
A: option a is the correct answer.
Q: 1. How much energy must be supplied to break a single aluminum-27 nucleus into separated protons and...
A: Since we only answer up to 1 question, we will answer the first question only. Please resubmit the q...
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A: Given: The displacement of the particle (s) is s=3t3-42t2+109t-39 The rate of change of displacemen...
Q: eleron An electron is tired horizontally with speed 130.000 m/s into a Unitorm Electic Field that is...
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Q: 1Ω ww o a 24 V (+ o b 2Ω 5Ω 2 A
A: Solution:
Q: Calculate resolution and depth of field for the following. (a) A light microscope with a wavelength ...
A: This problem is from the topic of optical instruments and particularly is “Microscope"
Q: A particle of mass m and charge e, initially at rest at the origin, is subject to constant fields E ...
A: Initially the particle is at rest at origin so the magnetic force is zero on this and the electric f...
Q: Ex. 50 Assuming the earth to be a sphere, calculate moment of inertia about its own axis. If the ang...
A: To find- K.E. of rotation of earth Given- ω=7.3×10-5 rad/sM=6×1024 kgR=6.4×106 m
Q: formula of specific heat capacity in thermodynamics
A: Specific heat capacity is the amount of heat required for unit mass to increase its temperature by o...
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Q: In an Energy Conversion, site two forms of energy that equipped with both potential energy and kinet...
A: In a flying bird, we observe both kinetic energy and potential energy.
Q: A particle starts to move at O and travels in a straight line with velocity v cms-1, where v=4t4+t3+...
A: Given, Velocity, v=4t4+t3+5t2+t+7 a. Particle comes to rest at A. So, the velocity at A is zero, v=4...
Q: 4. A Porsche challenges a Honda to a 100m race. Because the Porsche's acceleration of 3.5 m/s? is la...
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Q: 41 : Four resistances 10, 10, 10 and 15 N from a Wheatstone's network, what shunt is needed across 1...
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Q: wedge shaped object sits of the floor of a room as shown in the Figure. A uniform electric field of ...
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Q: The pole is subjected to the force F, which has components acting along the x, y, z axes as shown. I...
A: Given Force (F) = 5kN Gamma γ = 75° Beta β = 30° Alpha α = 64
Q: A marble weighing 2 kg experiences simple harmonic motion. If Amp=1.5m & total mech. energy=15J, fin...
A: Concept: Here, The Total Mechanical Energy will be, E=12kx2 here, k= spring constant x= Amplitude Th...
Q: 7. The resistivity of intrinsic Si is 2.3 x 10.m at 300 K. Calculate its resistivity at 100°C. Assum...
A: 7)Given: Resistivity of intrinsic silicon=2.3×103 Ω-m Band gap energy EG=1eV Boltzmann constant k=1....
Q: alocity-time graph of the motion of a cart moving on a straight and lovel track is given. Find the c...
A: Answer : The instantaneous velocity of a particle is : v=dxdt ....(1) where dx ...
Q: A police officer measures the sound pressure level at a distance of 7.5m from the line of traffic on...
A: Given information: The distance of the line of traffic from the police officer (dt) = 7.5 m The soun...
Q: F2 = 125 N %3D 5 y 20% 60° 45° 60° F = 400 N Find the Cartesian Vector form for the resultant. 3,
A: Given, F1=400N F2=125N For vector F1, The angle between x-axis and F1 is, α=45o The angle between...
Q: In The Old Man and the Sea, Hemingway described the old man lying in his boat, looking up at the sky...
A: The wrong statement made in the paragraph is about the old man seeing Rigel star.
Q: A particle in an experimental apparatus has a velocity given by v = k/s, wherevis in millimeters per...
A: Answers These are the values of t,s,a when velocity reached 9 mm/s t=243 s s=857.32 mm or 857 mm a=...
Q: ed at 100 KV. Electrical fie exceed 10 kV/cm (1=1 cm)
A: Given, V= 100 kV Emax=25 kV/cm Emin = 10 kV/cm To find outer radius of the spherical electrode D=out...
Q: The enthalpy of combustion of a gallon (3.8 liters) of gasoline is about 31,000 kcal. The enthalpy o...
A: Given: Enthalpy of the combustion of a gallon of gasoline, 31,000 kcal Enthalpy of the combustion o...
Q: An iron block of unknown mass at 185F is dropped into an insulated tank that contains 0.8 ft3 of wat...
A: Given: v=0.8ft3, Tw=70F,Ti=185F, P=200W, t=10min=600s,T=75F The specific heat of water (cw) and iron...
Q: C2 Five capacitors are connected as shown in the figure. Determine the equivalent capacitance of the...
A: Here capacitors are connected in both series and parallel connection. So we have to calculate the eq...
Q: The electric field vector in a region of space is given by the function of E-5xî +2yj where x and y ...
A: Electric potential at a point is the work done in the process of moving test charge from infinity to...
Q: wedge-shaped object sits of the floor of a room as shown in the Figure. A uniform electric field of ...
A: Given, Electric field and Wedge
Q: Calculate the electromagnetic field potential at point A, if the source of the field is a sphere wit...
A: Given, Charge on the inner sphere, q1=2q Charge on the outer sphere, q2=-q The distance of A from th...
Q: Scenario: An ice skater is standing at rest next to the wall of the ice rink. The skater pushes on t...
A: Newtons third law of motion states that every action has an equal and opposite reaction. This statem...
Q: 04: Define 05: Is cose+sin O e an eigenfunction of L and L, if yes, what are the corresponding eigen...
A: Given: The eigenfunction is given as ψ(θ,ϕ) = cosθ + sinθeiϕ
Q: Ex. 47 A circular disc of mass 2 kg and diameter 0.2 m is rotating about an axis passing through its...
A: To find- Rotational K.E. of a disc About an axis perpendicular to its plane=? Given- Mass of disc (m...
Q: (n) The surface of a silicon wafer is a (100) plane. Which, if any, (110) directions lie in the (100...
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Q: Ql: If the magnitude of the resultant of the forces shown in the figure below is to be 80 kN directe...
A: Given, Forces are, F1=20kNF2=40kNF3=50kNu=80kN
Q: What is the relationship between quasi-statics and statistical physics?
A: In thermodynamics a Quasi- static process also known as quasi-equilibrium process is thermodynamics...
Q: 4) An insulating sphere with charge density p and radius R has a spherical hole of radius a located ...
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Q: The differential equation for a damped pendulum is: Ô + 2y0 + w? sin 0 = 0 %3D If w = 1.4 s-1, y = 2...
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Q: 6. Find the matrix representation for the following multi-qubit kets: (a) |1) ® |1) ® |0) (b) |1) ® ...
A: Concept used: The kets are represented by column vectors. 1>=010>=10
Q: The total energy a system includes all but which of the following? O Kinetic energy O Potential ener...
A: The total energy of any system is a sum of all the possible energies of the system, which are both, ...
Q: You measure the acceleration of a METRA train to be a = 0.58 m/s/s. If you are standing at the front...
A: Given, Acceleration,a=0.58m/s2 The length of 3 car,s=25.9×3s=77.7m Initial velocity is zero. Accordi...
Q: Three identical longe metal plates Each of area 'A' are placed Parallel to Each other at Equal diste...
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Q: If a particle has an initial velocity of v, = 12 ft/s to the right, at s, = 0, determine its positio...
A: Kinematics is the field of physics, which deals with the particle in motion. In kinematics there is ...
Q: Calculate resolution and depth of field for the following. (а) A light microscope with a wavelength ...
A: The term 'n' below represents the refractive index of the material between the sample and the object...
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