In an empty Universe we can write PR = M = 0, 2x = 1. H² H² = (PRа+ + Ma³ + Q²₁a²²)→ H² = H₂₁²a-² (à/a)² = Ho2a-2 à = Ho Which of the following solves the Friedmann Equations in such a Universe? A. a(t) = At B. a(t) = B t¹/3 C. a(t) = C t²/3 D. a(t) = D t¹/2 E. a(t) = E eHot
Q: Show that the average square momentum for a free particle whose wavefunction is V (x) = Aeikɛ (3.1)…
A: In this case, the wave function and its complex conjugate are given in the following way.…
Q: Define modulus of rigidity. Derive the expression for the modulus of rigidity in case of deformation…
A: Modulus of rigidity- The ratio of tangential stress to the shear strain is called as modulus of…
Q: 5.21 Current / flows along the positive z direction in the inner conductor of a long coaxial cable…
A:
Q: A non-conducting container filled with 25 kg of water at 20°C is fitted with a stirrer, which is…
A: Given : mw = 25 kgT1 = 20°CM = 35kgh = 5 mg = 9.8 m/s2
Q: in the circuit of the figure below, the current I₁ = 3.80 A and the values of & for the ideal…
A:
Q: hi, please help me answer only questions 1 (a), (b), (c), and (d
A:
Q: Theoretically, you expect to find for this vector sum of the three weight forces in static…
A: At equilibrium, net force acting on a object is zero. FNet=0 F1→+ F2→+F3→ =0 (1) Triangular law of…
Q: The figure shows the tracks left by an electron and a positron in a bubble chamber placed in a…
A: Electrons and positrons are subatomic particles. They have the same mass and same magnitude of…
Q: Question 3: Yiğit Çınar is developing a program with a number of activities that must be completed.…
A: This problem can be solved by applying the basic concept of activity on node problems .
Q: 7. In your own words, describe the concept of sound intensity. K/UC
A: Before moving to concept of sound intensity, we'll discuss what is sound? All types of waves…
Q: What is the time-averaged intensity of an electromagnetic wave whose maximum electric field strength…
A:
Q: 3. Three infinite sheets of uniform surface charge densities of +o, +o and -o are arranged as shown.…
A: The electric field intensity on a plate is given by Here, is the surface charge density. The total…
Q: A particular charge distribution is centered on the z-axis and extends from z=-∞ to z=+∞ . Its…
A: The density of a material indicates the density of that material in a certain region. The density of…
Q: When two pieces of aluminum foil are brought close to each other, there is no interaction between…
A:
Q: 51. B SSM A flywheel is a solid disk that rotates about an axis that is perpendicular to the disk at…
A:
Q: A hot air balloon has just lifted off and is rising at a constant rate of 2.0 m/s. Suddenly one of…
A: Given: The speed of the passenger (balloon ) is 2 m/s. The height of the passenger during the toss…
Q: A charged dust particle in an electric field experiences a force of 4.4 x 10-13 N. The charge on the…
A:
Q: 5. A wire of conductivity is 1.5x10 0¹m¹ has a resistance 50 and its cross- sectional area is…
A:
Q: The data obtained from the experiment is presented in the table below. Constant Mass vs Varying…
A:
Q: Block B is stacked on top of block A and does not slide with respect to A below the blocks move as a…
A:
Q: The charges and coordinates of two charged particles held fixed in an xy plane are q1 = 2.17 μC, x₁…
A:
Q: *4.55 In a dielectric medium with & =7, the electric field is given by E = x(x² + 2z) + ŷx² – î(y +…
A: Electric field is, E=x2+2zx^+x2y^-y+zz^ Permittivity is, εr=7
Q: A 150 mW vertically polarized laser beam passes through a polarizing filter whose axis is 40• from…
A:
Q: Explain why. Thanks
A:
Q: If a person pushes on a lawnmower with a constant force of 90.0 N at an angle of 40° to the…
A: Given data: Constant force (F) = 90.0 N Angle (θ) = 40° to the horizontal Horizontal displacement…
Q: A 2100-turn solenoid is 1.9 m long and 15 cm in diameter. The solenoid current is increasing at 1.4…
A: Given data:The no. of patches on the solenoid is n=2100.The length of the solenoid is l=1.9 mThe…
Q: In an electrically heated home, the temperature of the ground in contact with a concrete basement…
A:
Q: In the figure shown, mass M is at rest, mass m the falls on mass M and adheres to it without any…
A: When a mass is attached to a spring, the spring experiences stretching or compressing based on the…
Q: Using the letters, match each prefix with the multiplier it represents. V V V V x 10-6 x 106 x 10-3…
A: The given prefix are associated with multiplier as per their definition.
Q: Hi, Please I need help with question 57, attached. Thank you. Aisha.
A:
Q: The magnitude of the magnetic field 50 cm from a long, thin, straight wire is 8.0μT. What is the…
A: Given that-Magnitude of the magnetic field in thin straight wire is 8.0μTDistance of the point at…
Q: The activity (or decay rate) A of a certain unknown radioactive sample was measured over a period of…
A: Given:
Q: end. Calculate x if the two people in the rear each support one-third of the ladder's weight.
A: Length of ladder, L=5.0m Three people support one-third of the ladder's weight.
Q: Which of the following have the greatest kinetic energy after a beta plus decay? Select one Oa None…
A: In nuclear physics Beta decay is a type of radioactive decay in which a beta particle emitted form…
Q: A point charge q1 =8.0 nC is at the origin and another point charge q2 = 12.0 nC is on the x-axis at…
A:
Q: A carousel has a radius of 1.70 m and a moment of inertia of 118 kg m2. A girl of mass 42.5 kg is…
A:
Q: Consider the vectors below. Find the value of A. Round-off your answer to two decimal places. Do not…
A: Vector.
Q: 5) Create a unit vector in the direction of (5, 3). 6) Determine the angle between the positive…
A: 5) the unit vector in the direction of (5,3) n^=552+32,352+32=534,334in vector formn^=534…
Q: Consider the vectors below. Find the value of G. Round-off your answer to two decimal places. Do not…
A: Given : A vector with magnitude 15 N which makes an angle of 265° with the positive x-axis. We have…
Q: In lacrosse, players use sticks to throw the ball. An offensive stick is 1.2m in length, has a mass…
A: Given Data The mass of the stick is:M=0.5 kg The mass of the ball is:mb=160 g=0.16 kg The angular…
Asap please....
Step by step
Solved in 2 steps with 1 images