8: The current flowing through an external resistance of 5 ohm is 1 ampere when it is connected to the terminals of a cell. This current reduces to 0.6 ampere when the external resistance is 10 ohm. Find the internal resistance of a cell using Kirchhof's law.
Q: Suppose that you trying to determine the age of a particular rock. The rock contains a form of potas...
A: Radioactivity.
Q: b) Calculate the hole and electron densities in a N-type germanium semiconductor at room temperature...
A: Given in the problem conductivity σ =500Scmμn =3800 cm2Vsμp = 1800 cm2Vsni = 2.5 x 1013 /cm3
Q: If a = 30 cm, b = 20 cm, q = +9.2 nC, and Q = -8 nC in the figure, what is the potential difference ...
A:
Q: If the coefficient of static friction at contact points A and B is us = 0.3, determine the maximum f...
A:
Q: (b) Explain one of the techniques used to measure the level by using pressure-measuring devices. (c)...
A: The pressure within the Earth's atmospheric is known as barometric pressure.
Q: Q. 21 : In a Young's double slit experiment set up, slits are kept o.4 mm apart from each other and ...
A: To Find: New fringe width X2 Given: Distance between source and screen (D) = 2 m = 2×103 = 2000 m In...
Q: SEPARATION OF VARIABLES Find the GENERAL SOLUTION. 1) ex-ydx + sin y sec x dy = 0 2) y(u² + 1)du + (...
A: This problem can be solved by separating the variables.
Q: 13. An object wtih mass m has moment of inertia I about its center of mass. If we take the moment of...
A: The moment of inertia I is define as the sum of the product by multiplying the mass m of each partic...
Q: Testing the concepts of calculus a) Apply 3 steps of the gradient descent algorithm to the following...
A:
Q: An image through a concave mirror is found to have a transverse magnification of M = +2. The image i...
A:
Q: 3. Deduce and explain the basic NMR components.
A: An NMR spectrometer consists of six main components listed below : A sample. A permanent magnet ge...
Q: A cylinder (Iem = MR² /2) with mass 2.50 [kg] and radius R =1.25 (m] experiences a net torque of mag...
A:
Q: 20 V 6A R 120 80
A: Given, An electric circuit with current source and many resistors.
Q: 2. Twin water bugs Jimmy and Johnny are both creating a series of circular waves by jiggling their l...
A: If two crests coincide with each other, it is termed constructive interference. If two troughs coinc...
Q: Q. 14 : In interference experi nent, blue light of wávelength 4800 A is used to get fringe pattern. ...
A: To Find: Wavelength pf red light λR Given Data: Wavelength of blue light λB=4800 Ao Distance of 4th ...
Q: In a zoo, a Metal-A cable with initial length of 4 meters and initial diameter 1 cm is needed to lif...
A: i) Elephant mass, M=1350 Kg initial Length of the rope, li=4 mInitial Diameter of the rope, di=1 cm=...
Q: ase of this unive hat nearby galaxie stance. He then me
A: From Ryden equation, a(θ)=Ω02Ω0 -1 (1-cosθ)t(θ)=Ω02H0 (Ω0 -1)32 (θ-sinθ) θ= 0 to 2π Here, a=1.
Q: Q A SAMPLE OF INTRINSIC SILICON AT ROOM TEMPERATURE HAS A CARRIER CONCENTRATION OF 15 x 10/m3. A DON...
A:
Q: 14. After doing all the work, Leni got tired and suddenly lost grip on the string. The 1000 [N] box ...
A:
Q: 1. Use the semi-empirical mass formula to deduce, for a given mass number A, the optimal value of Z ...
A: **As per our company guidelines we are supposed to solve only one question (if there are multiple qu...
Q: A short bar magnet placed with its axis at 30° with a uniform external magnetic field of 0.25 T expe...
A: Given that,Magnetic field strength, B=0.25 TTorque on the bar magnet, T=4.5×10-2 JAngle between the ...
Q: 6. A circular pulley of radius 0.35 [m] can rotate on frictionless bearing. A massless string passes...
A: The time rate of change of angular velocity is known as angular acceleration.
Q: 2. A sphere of radius R has a potential p(R, 8) = ,cos²0 on its surface. Determine the potential out...
A: Given: φ(R,θ) = φ0cos2θ
Q: | An image through a concave mirror is found to have a transverse magnification of M = +2. The image...
A: The magnification of concave mirror is given by M=-v/u And when the value of M is more than 1, the...
Q: 1. Which of the following is true for an object in static equilibrium? A. The object is moving with ...
A: A body is said to be in equilibrium if net force on the body is zero. If velocity of the body is zer...
Q: Olijuliction, When it is 0.3AU fröm Earth (Venus is 0.7AU from Sun). It's orbital eccentricity is 0....
A: Astrophysics.
Q: 10. A ball is thrown from a point 1 meter above the ground. The initial velocity of 19.6 m/s at an a...
A: Given: Initial height, h=1 m Initial velocity, u=19.6 m/s Angle, θ=30° To find: Maximum height of th...
Q: A cornot engine has an tempeualiueof sinkb bo°c flous should the fomp f seuce be inceeared if the en...
A: To find-Temperature of source increased by (T1)=?Given-η1=30%T2=56+273=329 Kη2=80%
Q: Q1. The following vectors involved in the problem are shown in Fig. 1, Find (a) the direction of vec...
A: Note: "Since you have posted a question with multiple questions, we will solve the first question fo...
Q: Considerthe step potential function shown below. Assume that a flux of electrons has energy E and it...
A: The potential Vx=Vo x≥00 x<0 Using Time independent Schrodinger equation: ∂2ψ∂x2+2mh2E-Vxψ=0 ...
Q: Consider double slits with one slit covered by a thin film with its thickness t=0.1 mm. The index of...
A:
Q: A uniform magnetic field of 1.5 T exists in a cylindrical region of radius10.0 cm, its direction par...
A: Given that,Magnetic field strength, B=1.5TRadius of the cylindrical region, r=10 cm=0.1 mCurrent in ...
Q: A spectrometer uses a specific light source and a grating that has a spe
A: Grating specification=200/mm 1 mm consists of 200 grating linesThe distance between two grating line...
Q: For Ge semiconductor, assume the Fermi energy level is 0.1 eV below the conduction band energy Ec. L...
A: Given Data The fermi level is :EC-Ef=0.1 eV The absolute temperature is:T=200 K Mass of electron is...
Q: An object is located at a distance s = 10 [cm] ir front of a mirror having a focal length of f = 16 ...
A: Since, we answer up to three sub parts, we will answer the first three. Please resubmit the question...
Q: Why does a bicyclist pick up speed on a downhill road even when he is not pedaling? Does this viola...
A: The concept of conservation of energy states that the energy of interacting things or particles in a...
Q: (a) If a flea can jump straight up to a height of 0.440 m, what is its initial speed as it leaves th...
A: Given that, Maximum height, hmax=0.440 mBy using kinematics equationv2=u2+2ghmax Equation 1w...
Q: Load (N) Length (mm) 40 100 40.2 200 40.4 250 41 300 42 350 43 400 45 450 48 420 51 40
A:
Q: 10. A thin spherical shell of mass M = 3.00 [kg] d 0.400m and radius R = 1.50[m] compresses a spring...
A:
Q: The figure shows a circuit containing an electromotive force, a capacitor with a capacitance of C fa...
A:
Q: Consider a solid uniform ball of mass M and radius Rrolling without slipping near the bottom of a fr...
A: Given Data The mass of the ball is : M The radius of the ball is: R The radius of the hemispherical...
Q: 5.2 Suppose you are in a flat, matter-only universe that has a Hubble constant Ho = 68 km s-1 Mpc-1....
A: Given, For a galaxy z=1 and also the red-shift change by one part in 106. Then dz=-10-6 Since there ...
Q: 3 ().The representation of wave function in spherical harmonic is : V87 Q1: Consider a system is in ...
A: Given: The wavefunction is given as
Q: required to calculate the potential inside the sphere 1 = Rassuming that there is no charge inside t...
A: Given: No charge in the sphere. R = 1 2 cases of boundary conditions 1) Potential at surface = 1 2...
Q: Use the foumula AmT -0-2 cm R to oblain chauariteustre lempeyalue lange for cdiffeund pauls of elecb...
A: A body at a particular temperature produces a continuous spectrum of wavelengths. In case of a black...
Q: An 85 kg skydiver jumps from a stationary helicopter that is 5.5 km above the ground. After 55 s of ...
A: Given Mass (m) = 85 kg Height (h) = 5.5 km Time (t) = 55s Velocity (v) = 6.4 m/s x^ + 60 m/...
Q: For the following physics phenomena, find the scaling law and explain how each phenomenon changes at...
A: Current progress in basic science has been focused on micro and nanoscale effects. The tremendous in...
Q: is a plere Er= 2,Mr= 1. wove's electriiz field. Find 36T a) n (propagation directibn -) A (constant)...
A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and s...
Q: We get energy from food to do what we need to everyday Why is digesting food a chem change? a Digest...
A: Digestion is a chemical change as it involves changes in the composition of the food going through v...
Q: The core temperature of an athlete is 37 °C and his surface area is 1.8 m2. The thermal conductivity...
A: Given that,Core temperature : T = 310 (K)Area : A = 1.8 (m2)Thickness : l = 6 (mm)Thermal conductivi...
Step by step
Solved in 2 steps with 1 images
