What value for the Hubble constant would another galaxy in the universe observe?

Q: In the diagrams below, all light bulbs and all emf devices are identical. In which circuit (A, B, C,…

A: Let the resistance of each bulb = R Let the voltage drop of each emf device = V

Q: An ice skater rotates at 2.3 rev/s with arms outstretched. He collects his arms and spins at 15.6…

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Q: 22) A rod of mass 20kg of length L = 60m is mounted a distance L/4 from its left edge. It is held in…

A: Free body diagram:

Q: A square current loop of side a=0.4m lies in the x-y plane as shown in the figure. If the loop…

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Q: A 0.3 kg block attached to a spring with force constant 110 N/m is free to move on a frictionless,…

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Q: 3. A metal is heated up to a temperature of 450°C. It is then exposed to a temperature of 302 K.…

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Q: An ice skater rotates at 2.3 rev/s with arms outstretched. He collects his arms and spins at 15.6…

A:

Q: 48 Velocity- Time Graph v(m/s) PHYS 10.0 8.0- 6.0- 4.0- 2.0- t(s) 1.0 2.0 3.0 4.0 Consider the…

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Q: A pitcher throws a baseball of mass m = 0.150 kg with a velocity of 43.7 m/s. The momentum of the…

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Q: Determine the moment (Mc) of force F about point C and the perpendicular distance (d) between point…

A: Moment of force F about point C, τc→= rc→×F→ Perpendicular distance (d) between point P and the line…

Q: A golfer practicing on a range with an elevatedtee 4.90m above the farwayisable to strike a ballso…

A: height = h = 4.9 m horizontal velocity = V0x= 20 m/s

Q: A rechargeable battery has a capacity of 27090 C of charge. When connected to a 2.52 A DC power…

A:

Q: Magnetic Field Out Of Page.PNG A single circular loop of wire in the plane of the page is…

A: Dear student The Faraday's law states that if magnetic flux in a closed loop is changing, there is…

Q: body is accelerated, a force is invariably acting on it. Does this mean that when a force is applied…

A: Given:-  When a body is accelerated, a force is invariably acting on it.  Find:-   Does this mean…

Q: 2. Joshun pushed the block of ice with a force of 80 N at 25 from parallel. He pushed the ice 40 m…

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Q: ving points true (V) or false (x). 1. The resonance at LCR parallel circuit the impedance of the…

A: Check the following statement true or false.

Q: A certain volcano on the Earth can eject rocks vertically to a maximum height H. How high (in terms…

A: Free fall motion If we throw an object on Earth and then on Mars in a vertical direction, the…

Q: A star at a distance of 50000 light years from the center of a galaxy has an orbital speed of 100…

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Q: Two conductors are made of the same material and have the same length. Conductor A is a solid wire…

A: RA = pL/πrA2  RB = pL /π(r22-r12)

Q: Refer to the table below. Which material has the least ability to conduct current? Type of Materials…

A: Material with least value of electrical conductivity has the least ability to conduct current.

Q: A 0.5 kg object attached to a spring with a force constant of 7 N/m vibrates in simple harmonic…

A: mass of object (m) = 0.5 kg force constant (k) = 7 Nmamplitude (A) = 8 cm distance (d) = 7 cm

Q: A given convex lens has a focal length of f. The object distance is less than f as shown in the…

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Q: Electric Field is defined as the area where electrical force can be experienced. What happen to the…

A: Electric Field is defined as the area where electrical force can be experienced. What happen to the…

Q: In an electrochemical cell, the magnitude of the current passing between the electrodes is equal to…

A: Given Charge arrives at the negative electrode is q1=6.49×10-3 C Charge arrives at the positive…

Q: В(4, 6, 0) (1, 3, 0). А(3, 2, 0) O (0,0, 0) Fig. 1-21 a) 73° b) 75° c) 83° d) 90°

A: The vector CA→ is given by, CA→=(3-1)i^+(2-3)j^+(0-0)k^=2i^-j^ The vector BO→ is given by,…

Q: a. electric current that flows in the circuit b. the voltage in points A, B, C and D (VA, VB, Vc and…

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Q: Whale and Kanmuro are two islands located at the Chimera archipelago. These two are separated by a…

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Q: Determine the power input of the whole circuit.( R1 5.9 Ohms, R2 8.8 Ohms, emf - 5.0 Volts) Hìnt:…

A: Given: The emf of the battery is 5 V. R1=5.9 ΩR2=8.8 Ω

Q: Why do you have to warm the water above room temperature before adding the ice?

A: Answer:-  To warm the water above room temperature before adding the ice. Because    The Latent heat…

Q: In the diagrams, all light bulbs and all emf devices are identical. In which circuit (A, B, C, D, E)…

A:

Q: How much electrical energy (in kilojoules) is transferred to thermal energy in 3.02 hours by an…

A: time (t) = 3.02 hours resistance (R) = 340 ohm Potential difference (V) = 92 volts

Q: A car of mass 500 kg is traveling on a circular banked roadway that is inclined at an angle of 0 =…

A: Given value--- mass = 500 kg. angle = 20 degree.  radius = 100 m. We have to find--- minimum…

Q: Using various types of transformers, give 1 impact to the end-users per type of transformer in terms…

A: A basic transformer consists of two coils that are electrically differentiated and inductive, but…

Q: The peak voltage of an AC source is 102 V. What is the rms voltage?

A: Given : Peak voltage of an AC source (Vo) = 102 V

Q: f an object is 14 cm in front of convex mirror and image distance is 5.8 cm then it's focal length…

A: Given: The distance of the object is 14 cm from the convex lens. The distance of the image is 5.8…

Q: A spherical Gaussian surrounds a point charge q. Describe what happens to the total flux through a…

A: the final charge is quadrupled of initial means four times of initial

Q: The white dwarf that remains when our Sun dies will be mostly made of A. helium. B. carbon. C.…

A: Step1: Overview   The white dwarf that remains when the sun dies will be mostly made of carbon .

Q: 37 Fy- 160 N 42 1.0 m 34 A uniform 15 kg pipe of length 5.0 m has a 160 N force applied 4.0 m from…

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Q: A system undergoes an adiabatic process in which its internal energy increases by 20 J. Which of the…

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Q: A wire carries a steady current of 2.0 A. (a) How much charge flows past a point in the wire in 5.0…

A: Current (I) = 2 A time (t) = 5 min

Q: 6. Two conductors are made of the same material and have the same length. Conductor A is a solid…

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Q: Calculate the components of the following vectors. A = A, + A, 3) N 300. m @ 22.0° E of N 130. m/s…

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Q: A force with a magnitude of 40 N is applied at an angle of e = 30. below the %3D horizontal to an…

A: Given information: The mass of the block (m) = 50kg The angle at which the force is applied (θ) =…

Q: Two masses mį = 8kg, m2 = 10kg are connected by a very light string over a pulley. a) Draw the free…

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Q: Suppose photons are produced in a cathode ray tube (CRT) from electrons which are accelerated across…

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Q: Which of the following is an accurate statement about quasars?

A: ANS: They are abnormally massive, luminous stars at the cores of ancient galaxies.

Q: Do you have an idea about how the rainbows were formed?

A: Do you have an idea about how the rainbows were formed?

Q: 2. A car is moving at 25 m/s to the right with a momentum of 1000 kg m/s. Calculate the mass of the…

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Q: A sine wave has a maximum value of 312 volts.   What is its instantaneous value at an angle…

A: Given:Maximum Voltage is 312 VoltsAngle displacement 55°To Find:Instantaneous value of Voltage

Q: 18. The motion of a bee flying through east is given by: x(t) = 18.0 m + (10.4 m/s)t –…

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Stellar evolution

We may see thousands of stars in the dark sky. Our universe consists of billions of stars. Stars may appear tiny to us but they are huge balls of gasses. Sun is a star of average size. Some stars are even a thousand times larger than the sun. The stars do not exist forever they have a certain lifetime. The life span of the sun is about 10 billion years. The star undergoes various changes during its lifetime, this process is called stellar evolution. The structure of the sun-like star is shown below.

Red Shift

It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths (red) side.