What was the baryon density of the universe when the temperature was equal to the temperature of the Sun's center? Compare your answer to the average density of the Sun's center (p = 1.5e3 kg/m³). Why do you suppose nuclear fusion didn't happen throughout the universe at this epoch?
Q: If we place a particle with a charge of 1.4 x 10° C at a position where the electric field is 8.5 x…
A: Given: In this question, the given details are, The given charge value is, q=1.4×10-9C, And the…
Q: In a resonance tube experiment a tuning fork resonates with an air column 10 cm long and again…
A: A tuning fork resonates with an air column that is 10 cm long in a resonance tube experiment, and it…
Q: In an RC circuit supplied with AC power, a 500 ohm resistor is used to create a system with a…
A: Disclaimer: “Since you have asked posted a question with multiple sub-parts, we will solve the first…
Q: Find the heat that flows in 1.0 s through a lead brick 25 cm long if the temperature difference…
A: We are aware that the heat flow takes one second to complete, that the brick is 25 cm long, that…
Q: A torque of magnitude 2000 Nm acting body produces an angular acceleration of 2 rad/s². Calculate…
A: We know that a body under a 2000 Nm torque will accelerate angularly at a rate of 2 rad/s2.
Q: 2. A ball is thrown vertically upward from the ground with a speed of 36.0 m/s. suppose the…
A:
Q: Astronomers discover an exoplanet (a planet of a star other than the Sun) that has an orbital period…
A: The equations of motion governing a circular orbit among planets give rise to the period of…
Q: DC circuit shown in figure 3 below, Mesh equations for any 3 loops. write the Also find the values…
A: A mesh equation is used to find the current in a circuit loop without doing many mathematical…
Q: Express the matrix Ŝ₂ as an exterior Product. 1aXBI 1+2=/1 O 0 1 S₂ 2 = 524 ħ 10>= 10 1 0 4 O O 31 O…
A: We will answer the question using formula for outer product representation of an operator. The…
Q: An 80- 50 kg dog lying on floor at rest. The coefficient of kinetic friction between the dog and the…
A: We will answer the question by first identifying the forces on the dog, and then using kinematic…
Q: 10.17 The bulk modulus of water is 2.2 × 109 N m−2. What increase in pressure needs to be applied to…
A: We are given side of cube of water. We are given bulk modulus of water. We find the change in…
Q: What is the minimum work needed to push a 900 kg car 850 m up along a 8.0 incline? Ignore friction
A: Given: In this question, the given values are, The given value of the mass of the car is m=900 kg,…
Q: B. A car started from rest and move with constant acceleration. At one time, it was travelling…
A:
Q: Describe polarization of the electric dipole radiation produced by a single charge rotating around a…
A: Transverse waves have a feature called polarisation that describes the geometric orientation of the…
Q: Please solve for the remaining subparts c and d
A: We are given magnetic field. We are given dimensions of rectangular loop. The loop is rotated in…
Q: From the surreal realm of deep-sea hydrothermal vents 200 miles offshore from Puget Sound, comes a…
A: We have to find the temperature f the microbe in degree Fahrenheit. We know the tmperature of the…
Q: During a workout, a person repeatedly lifts a 16-lb barbell through a distance of 1.1 ft. How many…
A: The quantity of repetitions needed to burn 150 C must be ascertained. We are aware that the barbell…
Q: Consider a thin, straight wire carrying a constant current I and placed along the x axis as shown in…
A: We need to find the magnetic field at point P due to the current-carrying conductor as shown in the…
Q: eded help with question 2 that was submitted not question 1.
A: Solution: 2. (a). The speed of the water leaving the hose is givenby the following, v=2gh…
Q: A light detector is located at the centre of a train carriage, if the light detector receives light…
A: Given Data: A light detector is located at the center of a train carriage, if the light detector…
Q: Explain what happens to the phonon dispersion relation as µ changes
A: Dispersion relations describe the effect of dispersion on the characteristics of waves in a medium.…
Q: The wavelength of a sinusoidal plane electromagnetic wave propagating in -z direction in vacuum is 6…
A: Given data, Wavelength is given λ=6×10-9 m. Speed of light c=3×108 m/s.
Q: A hockey puck is sliding down an inclined plane with angle = 19° as shown in figure below. If the…
A: We are given a puck. This puck is moving down the incline. We are given angle of inclination. The…
Q: Two long current carrying wires, I and I2, are separated by 2 mm and both carry a current of 8 A.…
A:
Q: Consider the angle shown above measured (in radians) counterclockwise from an initial ray pointing…
A: We are given point of final ray. We are given that the angle is measured counterclockwise. We see…
Q: Q. 6: A car goes round a circular track of radius 50 m with speed of 25 m/s. Its angular speed is 15…
A: We need to find-Angular speed ω=?The data given as-radius (r)=50 mSpeed (v)=25 m/s
Q: A uniform solid cylinder is placed with its axis horizontal on a plane, whose inclination to the…
A:
Q: An electric current in a conductor varies with time according to the expression I(t) =…
A: Electric current is generated due to the flow of charges. It is the rate of change of charge with…
Q: A square circuit with sides of length ℓ = 0.30 m and R = 10 ? moves with a constant velocity v = 3.0…
A: When a closed circuit brings in a magnetic field or is close to the magnet so that the magnetic…
Q: Two conductors made of the same material are connected across the same potential difference.…
A: The electric power of a circuit or a system is defined as the rate of electrical energy transfer per…
Q: Part A Let #₁, #2, and 3 be the atoms' positions measured from their equilibrium positions. First,…
A:
Q: GaAs is utilized to manufacture infrared light-emitting diodes (LEDs). The band gap is 1.42 eV, and…
A: Given that Band gap (Eg)=1.42eVEffective mass of electron (me*)=0.067Effective mass of hole…
Q: How much work did the movers do (horizontally) pushing a 180-kg crate 10.1 m across a rough floor…
A: Given: In this question, the given details are, The given mass of crate is m=180 kg, and the given…
Q: In an open universe, the overall geometry of the Universe would be a. flat b. spherical c.…
A: There are generally three possible shapes of the universe, namely 1)flat universe 2)spherical…
Q: 1.Dueling Polarizers identical beams of light are incident on three different pairs of Gideal)…
A: Theory: When unpolarized light is passed through a polarizer, It becomes polarized in the direction…
Q: To stretch a relaxed biceps muscle 2.5 cm requires a force of 25 N. Find the Young's modulus for the…
A: We must ascertain the muscular tissue's Young's modulus. We are aware that the biceps muscle can be…
Q: Thermal energy is added to 180 g of water at a constant rate for 3.5 min, resulting in an increase…
A: We know that adding thermal energy to 180 g of water at a steady pace for 3.5 minutes causes the…
Q: Consider a sample of GaAs at 300 K in which the Fermi level is 0.40 eV below the bottom of the…
A: Given that Temperature (T) = 300kFermi energy (EF)=0.40eVProbability the energy state EF is occupied…
Q: Numerical Integration An alternating current is described by i(t) = (sinsin) where i = 1 A, t = 0.05…
A: Alternating current is the current in a circuit that changes its direction with some frequency, this…
Q: Two identical pucks collide on an air hockey table. One puck was originally at rest. (a) If the…
A: We are given 2 identical pucks. Since they have same mass, they make 90 degree angle after…
Q: 4. A roller coaster starts from rest at the top of an 18-m hill as shown. The car travels to the…
A: We are given a roller coaster. We ignore friction here. Since there is no friction, the mechanical…
Q: Draw a circuit below which has resistors both in series and in parallel (each of whose resistances…
A: Resistors can be connected in 2 ways. One is series combination. Other is parallel combination. All…
Q: 5. A soccer ball was kicked by a student at recess, causing it to roll along the flat playground…
A: We are given initial velocity of ball. We apply conservation of energy to find whether the ball goes…
Q: Q2. An 80 kg dog is lying on the floor at rest. The coefficient of kinetic friction between the dog…
A: We are given force by person. We first find the work done by the person. This is done by finding net…
Q: A camera has a converging lens with a focal length of 56 mm. If the f-number is 2.8 what is the…
A: Given; Focal length,F=56 mmf-number,f=2.8 The ratio of the focal length of the system to the…
Q: 7.7 The measured thermal conductivity of germanium at 300°K is 0.63 W/ºK, in a range where acoustic…
A: Given; Thermal conductivity at room temperature,K=0.63W/KLorentz number,…
Q: nee
A: Given: Fatigue testing is 150 MPa
Q: An infinite rectangular slab of thickness 2d is situated parallel to the x-y plane, with its center…
A: Magnetic fields are regions in which magnetism acts around metallic materials or oscillating…
Q: An infinite rectangular slab of thickness 2d is situated parallel to the x-y plane, with its center…
A: Given Data: Let us consider the given infinite rectangular slab of thickness 2d is situated parallel…
Q: Q. 6: A car goes round a circular track of radius 50 m with speed of 25 m/s. Its angular speed is 15…
A: We need to find-Angular speed ω=?The data given as-radius (r)=50 mSpeed (v)=25 m/s
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images