Olbers’s paradox deals with which of these questions?   a. Is the universe accelerating?   b. Why is the sky dark at night?   c. Is the universe expanding?   d. Why does the sun shine so brightly?   e. none of the above

Q: We want to make a voltage measurement. How should we connect the probes of the multimeter? Drag the ...

A: A multimeter can be used to measure various quantities.

Q: Determine the pressure drop along an arteriole of 20 mm diameter and 8 mm length. Assume a volume fl...

A: Viscosity of a fluid is the property by which it tries to resist the relative motion between two con...

Q: 38. What does 3 ^ 4 evaluate to? a. 81 b. 12 c. 0.75 d. 7

A: We have to evaluate 34 

Q: figure the switch has been closed for a long time so that the capacitor is fully charged. At t-0 the...

A: A capacitor offers no resistance when it is in its charging phase, but when it has been fully charge...

Q: Solving option B, please

A:

Q: 2. (Electromagnetic waves) How to get X-Rays?

A: X-Rays are electromagnetic radiation of extremely short wavelength and high frequency. X-rays have a...

Q: Why should the cord connecting the carrier to the hanging pan and passing through the pulley be made...

A: As we know pulley generally used in many ways like, it changes the direction of force, It moves an o...

Q: In the R-L circuit shown in Fig. when switch S1 is closed, the potential vac changes suddenly and di...

A: In the given LR circuit, Emf of the battery=ε When the switch is closed. During charging, Current th...

Q: 11) Based on observations, the speed of a jogger can be approximated by the relation v= 7.5(1 – 0.04...

A: v = dx/dt

Q: Advanced Physics Question

A: Given that:

Q: i need the answer quickly

A: Introduction: X-ray is the electromagnetic radiations of extremely short wavelength and high frequen...

Q: Why do we not see quasars near our galaxy?

A: Introduction: The word quasar stands for quasi-stellar radio source because the signals came from on...

Q: A skyscraper has a height of 152 m.  On windy days the skyscraper sways with a frequency of 0.17 Hz ...

A: The formula to calculate the angular velocity associated with the swaying of the building can be wri...

Q: Equation What is the equation to determine how much drag a paper airplane has?  Determine the effect...

A: Introduction: Drag is the aerodynamic force that opposes an aircraft's motion through the air. Drag ...

Q: A smoking room is to accommodate 50 smokers. The fresh air requirement for smoking areas is specifie...

A: please see the next step for solution

Q: In an L-R-C series circuit, the components have the following values: L = 20.0 mH, C = 140 nF, and R...

A: Given: L = 20.0 mH C = 140 nF  R = 350 Ω rms voltage=120 V frequency=1.25 kHz Formula used: Pavg=Vrm...

Q: An infinite set of wires has the cross-sections shown in the figure. Each wire has a current of I = ...

A: Given: I=1A  

Q: A plane mirror will produce a magnification of A. -1 B. +1 C. Zero D. Between zero and infinity

A:

Q: Please solve B

A:

Q: A straight, cylindrical wire lying along the x-axis has a length L and a diameter d It is made of a ...

A:

Q: Sketch FM and PM waves for the modulating signal m(t) shown in figure (3). The constant kr and k, ar...

A: Given data,   kf=2π×105kp=10πfc=100 MHz For FM wave  mmin=-1 and mmax=1 So from the formula of insta...

Q: A speaker has a diameter of 0.437 m. (a) Assuming that the speed of sound is 343 m/s, find the diffr...

A: The diameter of the speaker is given as, D = 0.437 m The velocity of sound is given as, v = 343 m/s ...

Q: An empty cylindrical canister 1.50 m long and 90.0 cm in diameteris to be filled with pure oxygen at...

A: An ideal gas always obeys the gas equation given as: PV=nRT

Q: Help me please

A:

Q: The position of the bound volume current is if an aluminium wire holds a uniformly distributed curre...

A: please see the next step for solution

Q: What is the expression for the change in Gibbs Free Energy as a function of critical magnetic field(...

A: please see the next step for solution

Q: What resistance R is required (in terms of L and C) to give an L-R-C series circuit a frequency that...

A: The damped frequency of RLC circuit is given by ω'=1LC-R24L2⋯⋯1 And the undamped frequency is given ...

Q: Please show work and circle your answers from parts A and B. Thank you

A: We know, V=λνor λ=Vν=340230=1.47m This is the required wavelength.

Q: Problem A newly discovered light positively charged particie has a mass of m and charge g. Suppose i...

A: Given the light particle as object 1 and the heavy particle as object 2. Here we are considering the...

Q: A sinusoidal electromagnetic wave from a radio station passes perpendicularly through an open window...

A: Given: Area of the open window is 0.500m2. Electric field of the wave Erms=0.0400Vm. Time is 30.0s.

Q: Help me please

A: please see the next step for solution

Q: Differentiate between good and bad vibrations. Give at least five examples for each of these two typ...

A: Introduction: Vibrations and waves are everywhere. If you take any system and disturb it from a stab...

Q: The hydrogen Balmer line Hγ has a wavelength of 434.0 nm in the laboratory. It is observed in a quas...

A: Quasi-stellar objects or quasars are the distant objects in the universe. They are hard to detect bu...

Q: 1. moder physics  please provide a clear, correct, and well explained for the following

A:

Q: Images 3a and 3b are images of the diffraction pattern for the laser shined on two slits. 3. What is...

A:  λ is the wavelength of the laser, D is the distance between the screen and the slit and a is slit s...

Q: The power rating of a resistoris the maximum power the resistor can safely dissipate without toogrea...

A: Power rating can be calculated using the potential difference and resistance.

Q: PHYSICS QUESTION

A:

Q: : How many times louder is a 60-dB sound than a 10-dB sound? DB is calculated by taking 10 10 : 10 1...

A: please see the next step for solution

Q: The largest structures in the universe are   a. star clusters.   b. galaxy clusters.   c....

A: Given, Structures in the universe

Q: Outbursts seen as quasars were triggered by   a. a helium flash.   b. a planetary nebula. ...

A: A quasar is an extremely bright Active Galactic Nucleus also known as AGN. The Quasars radiates a hu...

Q: In a P-type Si sample the hole concentration is2.25 × 1015/cm³. The intrinsic carrier Concentration ...

A: Given data ni=1.5×1010 /cm3p=2.25×1015 /cm3

Q: An aluminum wire carries a uniformly distributed current I along the z axis then the direction of th...

A: If current is uniformly distributed in wire then  there is no volume bound curreent. So answer is Ze...

Q: The function: y = 2.0 m * cos (3.0 rad/s * t + 2.0 rad) describes the simple harmonic motion for a s...

A: y=2.0m cos(3.0 rad/sec ×t+ 2.0 rad)

Q: A meter stick moves past you at great speed. Its motion relative to you is parallel to its long axis...

A: The length of the moving stick is 1.00 ft or 0.3048 m.  To determine: The speed of the meter stick. ...

Q: A magnetic field B1 = 3i + 4j + 5k from the air across the interface between region 2x + 2y + z = 10...

A: Given:-             For K→ = 0 β2→μ2 - β1→μ1 = k→ × n^β2→2= β1→1          μ2 = 2, μ1 = 1β2→ = 2 β1→ ...

Q: In problem 21.96 of your book. University Physics 15th edition (see End of the Chapter 12 section), ...

A: Given: The magnitude of first charge is q1=3.00 μC. The distance between two charges is d=13.0 cm. ...

Q: Question related to Quantum Mechanics : Problem 1.16

A: a.The wavefunction is given by ψ(x,0)=Aa2-x2, -a≤x≤+a0,                  OtherwiseThe Normalization ...

Q: Convert some quantities in energy (GeV) units by adopting the natural units c= /h%3D En = 1. a. Conv...

A: 1. 1 g/cm3 into Gev41g=5.62×1023 Gev1cm-1=1.98×10-143 Gev3=5.62×1023 Gev×1.98×10-143 Gev3=43.62×10-1...

Q: Air approaches a turbine at a constant pressure of 2 MPa and a temperature of 400°C at a velocity of...

A: please see the next step for solution

Q: The assumption of isotropy states that   a. the universe looks the same at all epochs.   b. ...

A: Given The assumption of isotropy states that, as following below.