A 0.01 cm thick gold plate is bombarded for 10 minutes with a thermal neutron beam with a flux of 10¹2 neutrons/cm²s. According to reaction Au¹⁹7 (n,7) Au ¹⁹8, Au ¹⁹8 197 198 nuclide is formed with a half-life of 2.7 days. Since the density of gold is 19.3 g/cm³ and the cross section of the reaction is o = 98.7x10-24 cm² a) How many Au ¹⁹8 atoms are formed per cm² of the plate b) Find the activity of the plate in milli Curies

Q: A body of mass 2 kg is driven by an engine delivering a constant power of 1 J/s. The body starts…

A:

Q: Figure A. Circuit with assumed currents KCL at node e: KVL around loop 1 (loop abgfea): KVL around…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: pls answer subpart D . I have submitted it as annew question

A:

Q: 559) See Fig 559. The curve is described by V(t)-Vm*cos (w*t+theta) + Vshift. Given V1-45 volts,…

A: Given:                   V(t)=Vmcos(ωt+θ)+VshiftV1 =45 voltsV2=-V1V3=7.8750 voltsT=2.500…

Q: Calculate the electric potential energy and work, given that the radial distance between two charges…

A:

Q: 1. At z=0, a circular gaussian beam is given by E = E, Exp-, where E is the electric field. (1) If…

A:

Q: Calculate the following to the correct number of significant figures. Assume arbitrary units (u).…

A: Significant figures in the measured value of a physical quantity tell the number of digits in which…

Q: 8. Determine the Magnitude of the Resultant Force acting on the Screw Eye and its direction measured…

A: Given data: The force in horizontal direction is F1=400 N. The force at θ=40° is F2=600 N.

Q: Two planes. A and B, are flying at the same altitude. Their velocities are 4= 300 km/h and 1=640…

A:

Q: Question 1: a. Determine the two unit vectors that are orthogonal to i = (-2, –1). Which two unit…

A: a) Given vector is V ⇀=(-2,-1)    Let us consider a vector, a⇀=(x,y)which is orthogonal to v⇀…

Q: Consider a sports car moving on a straight track according to the equation x = 2t2 +t+ 1, where x is…

A: The position of a sprots car with respect to time is given by : x(t) = 2t2 + t + 1

Q: A block with mass m₁-9 Kg rests on the surface of horizontal table which has a coefficient of…

A:

Q: 7-2 Starding ukues Two woves on same axis, but opposite drections d,( x, e) - Asin (Kx + wt + E) d,…

A:

Q: Question: a cold soda (10 degrees) is placed inside a warm 60-degree sauna. After 5 minutes, the…

A: Given: Cold soda initial temperature, T0=10°C Surrounding temperature, TS=60°C At t=5,  T=15°C Using…

Q: In a compound microscope, the focal lengths of the objective and eyepiece are f₁ = .5 cm and f2 = 2…

A:

Q: N vs. TIME graph below, click on the spot where the VELOCITY IS ZERO (the arrow will be placed where…

A: Introduction: When the body does not gets displaced with time, the velocity is said to be zero. So,…

Q: For the following circuit R1 = 55 2, R2 = 120 Q, R3 = 160 consumed by R1· [6] R2

A: GivenR1=55 ΩR2=120 ΩR3=160 ΩVsource =22 V

Q: Choce the comect vechy v d g praen Upw Úpg iwg Upw

A: Velocity is a vector quantity, so its followed vector laws of addition.

Q: Solve and match the answer

A:

Q: In the second part, you will investigate what happens as the frequency of the E. In particular, you…

A:

Q: Vehicle A, of mass 2931 kg, travelling at an initial velocity of 15 m/s crashes head on with vehicle…

A: Mass of A  mA=2931 kg initial velocity of A uA=15 m/s Mass of B  mB=934 kg initial velocity of B…

Q: For the circurit below, the saturantion Currents of Di ond Dz ore Isi=2A, Is2= 10A. The Cuent I=4mA,…

A: Given :               Is1= 2Is2 = 10-15AI = 4mA

Q: The ends of the bar with a uniformly distributed charge Q placed on the x-axis in the coordinate…

A:

Q: 5. Explain the theory of electron diffraction in solids, and then calculate the De Broglie and Bragg…

A: Louis de Broglie developed the idea that electrons exhibit both particle and wave properties. He…

Q: Constants I Period A 55 dB sound wave strikes an eardrum whose Part A area is 5.0x10-5 m?. How much…

A:

Q: Nichrome wire is used in some radiative heaters. (a) Find the resistance needed if the average power…

A:

Q: In the Beker model of the hydrogen atom, the ground state of hydrogen consists of a proton encircled…

A: Here it is a Bohr atom, where a proton is placed at the center of the circular orbit and the…

Q: Solve correctly please, with explanation need.

A: The eigenfunction of a particle in a box is given by

Q: Determine whether each of the following waveforms is an energy waveform or a power waveform, and…

A: a As given, w1t=2 sin210πt Since it is a periodic signal, w1t is the Power signal.   The power is,…

Q: Use the toiiowing constants if necessary. Coulomb constant, k = 8.987 x 10°N m2/c2. Vacuum…

A: a) Given:           Radius of the sphere is R = 29 m and           The surface charge density of the…

Q: 5) Calculate the potential at the following distances r = d, r =c & r = (c+d)/2 from the point…

A: Given: q=18×10-6C, c=24m, d=40m The electric field due to the charge q at r>d is given by :…

Q: 15 x(t) = cos(4√15t) + √5 sin(4√/15t) 12 i(t) = 5cos(4√/15t) — 2√5 sin(4√15t) ä(t) = -24cos(4√/15t)…

A:

Q: Study the heat treated steel workpiece shown in Figure A. Its dimensions are width w = 30 mm, height…

A: Volume removed per minute = 2250 mm3

Q: How do the particles in a sound wave move in relation to the path of the wave that carries them? O…

A:

Q: Once the toilet is flushed the tank must fill back up. The toilet tank has a volume of 0.032 m3 and…

A: Volume of the tank V=0.032 m3, rate at which water enter the tank Q=0.00059 m3/s, velocity with…

Q: m = 50.0 kg F = 160 N A grindstone in the shape of a solid disk with diameter 0.520 m and a mass of…

A:

Q: 9. A tank volume of 0.3m' contains 2 mol of He gas at 20°C. Assuming an ideal gas, calculate: (a)…

A: Data Given , Volume of the tank ( V ) = 0.3 m3 No. Of mole ( n ) = 2 mol  Temperature ( T ) = 20°C =…

Q: 4. If two equal charges of 35.00 C each are separated in the air by a certain distance of 1.00x103…

A:

Q: T he ADA Standards reguire hat a wheelchair ramp have a naximum 8.3% grade What is the maximum angle…

A: Given: The maximum grade of the ramp 8.3%.

Q: 13.00 m/s, as shown in a top-down view in figure (a) below. The edge of this disk just grazes the…

A: Given that disc of mass m1 =60g r1 =4.5 cm v =14 m/s m2 =140g, r2 =5cm The RCM…

Q: The CdSe nano-crystals change their color by changing the particles size (in nm) as shown in the…

A: The wavelength and bandgap energy depend on the variation in color of the CdSe nano crystal. The…

Q: ectrons are th

A: Given: Number of protons in amoeba is 1×1016 proton. Net charge is 0.2 pC