A student asserts that silicon and germanium become good insulators at very low temperatures and good conductors at very high temperatures. Do you agree? Explain your reasoning.
Q: إذا كان الترس )gear( يدور بسرعة زاوية تبلغ )rad/s 3( وكان الرف )Zrack( يتحرك بتسارع )f/s 3( باتجاه ا...
A:
Q: *** 7. Equation 24.8 gives the momentum of a massless photon as p = E/c. As a result of the photon m...
A: Given wavelength of photon is, λ=500×10-9m So energy of photon will be, E=hcλ=6.63×10-34J.s×3×108m/s...
Q: Two identical vertical radio antennas are 0.810 km apart. Both emit in phase at a frequency of 1.05 ...
A: Given, Distance,d=0.810km=0.810×103mFrequency,f=1.05MHz=1.05×106HzSpeed of light,c=3×108m/s (a) We h...
Q: Three wires sit at the corners of a square, all carrying currents of 2 amps into the page as shown i...
A:
Q: A wood block of mass mw = 200 g is projected from the ground at a speed v0 = 35 m/s and at an angle ...
A: We use the conservation of momentum and mechanical energy in the vertical direction to get the maxim...
Q: Why does catching a football hurt more than catching a tennis ball?
A: Momentum is expressed as, p=mv
Q: For the potential ry 3r, what is the corresponding electric field at the point (3,2)? A. 12.04 N\C B...
A: Given Potential (V) = xy2 - 3x Electric field at the point (E) = (3,2)
Q: A circuit contains a 12-volt battery and a 4-ohm resistor. What is the current in this circuit? (IN...
A:
Q: I need a,b,c
A: # NOTE: Thank you for the question. As per the company honor code, we are allowed to answer up to th...
Q: A charge of uniform volume density (40 nC/m) fills a cube with 10 cm edges. What is the total electr...
A: Given: Uniform volume density is ρ=40nCm3=40×10-9Cm3. Side is a=10cm=10×10-2m.
Q: 72 2=1,cose If the linear charge density of the semicircle in the figure changes with 2 = 1ocos0 cal...
A: Given to us is a semicircle of radius R and also the charge density lambda as a cosine function of a...
Q: Please help me asap
A: Given data: The value of current at t=6 s is, I2=2×0.65=1.3 A The value of current at t=9 s is I1=0....
Q: The change in entropy of 250 g of water heated slowly from 20 °C to 80 °C is:
A: Given data; mass of water=250 (gm)=0.25 (kg); the initial temperature of the water, Ti=20o C=20+273....
Q: A wood block of mass mw = 200 g is projected from the ground at a speed va= 35 m/s and at an angle &...
A: Here, we apply conservation of momentum and conservation of mechanical energy to get the required va...
Q: Explain effect of defects on the properties of material and also explain the effect on mechanical pr...
A:
Q: What is your apparent weight as you drive over the top of this hill, in terms of the given informati...
A: Here, we apply Newton's laws to get the apparent weight.
Q: please answer the 2 questions. thank youuuu
A: First we calculate the current using the relation, I=PV where P is the power and V voltage. Then fr...
Q: A microscope in the lab uses a lens with a focal length of 8.0 mm and an eyepiece with a focal lengt...
A: please see the next step for solution
Q: What is the phase shift at the frequency of oscillation of each of the three sections? frequency = 1...
A: Given: The frequency is 100 kHz. Introduction: A phase shift oscillator can be defined as; it is one...
Q: A thin film of oil is on a diamond. What is the thinnest that the oil can be to have destructive int...
A: Detailed solution is given below:
Q: A soccer ball with a mass of 0.45 kg has a velocity of 2.0 m/s to the east. It experiences a sudden ...
A:
Q: A light beam with the wavelength of 660 nm (AA) is created by a spaceship (A), is observed as its wa...
A: Given, emitted wavelength, λs=660×10-9 m observed wavelength, λR=924×10-9 m Let the velocity of spac...
Q: . At which value of electrical resistance (ohms) we can relate permittivity & permeability of fr...
A: The ratio of component of magnetic field and electric field is known as wave impedance. Here, the e...
Q: 3. Mu mesons are subatomic particles which are created when cosmic rays strike the top of the atmosp...
A: Given : Speed of meson, v = 99.5% of c = 0.995 c (where, c is the speed of light) Height of ...
Q: How are images formed by the light rays that are refracted to a lens?
A: Lens are of two types: Convex or Converging lens and Concave or Diverging lens Lenses can be assume...
Q: Please Help me to answer the options only option (c) and (d) . Reading a journal from that crazy o...
A: Part (c) Given: The wavelength of radio waves is λ=10 m. The force on the particle is F=eCr. In on...
Q: A wood block of mass niw = 200 g is projected from the ground at a speed vn= 35 m/s and at an angle ...
A: (d) Given: The mass of the woodblock is 200 g. The speed of the woodblock is 35 ms. The mass of the ...
Q: Please answer question numbers 7, 8 and 9. The questions and answers are connected from each other.
A: 7) circular loop radius, r=10 cm Number of turnings N=15 The angle the magnetic field makes with the...
Q: Light with a wavelength of 633 nm passes through a slit 9.2 µm wide, creating a pattern on a screen ...
A: Detailed solution is given below:
Q: Notice the rod with a length of 2a has a union load tight length of +λ and 1/2 ring with radius a ti...
A: A. The electric field due to the 1/2 charged ring is E=λ2πε0R here λ is the charge density R is the...
Q: If the linear charge density of a circular ring of radius R that is placed in the xy -plane and cent...
A: (a) The charge per unit length is called linear charge density and the charge per unit volume is cal...
Q: Reduce the parallel force system shown in the figure to a single resultant force. What is the x coor...
A:
Q: 27) The figure below shows a cross section of a hypothetical planet. An earthquake occurred near th...
A: Answer : Option 'A' is correct answer. Reason is given below:
Q: A 100N box sits on a 50° inclined plane with a coefficient of friction of 0.20. If a 500N force acti...
A: Consider the free body diagram of the given situation. Here, W represents the weight of the box, N ...
Q: A proton moves at a v = (2 i - 4 j + k ) m/s speed, in the magnetic field given as T, B = (i + 2j - ...
A: The given velocity vector & the given magnetic field vector can be expressed as below,
Q: What is the magnitude of the angular momentum of a 4f orbital?
A: For an orbital with orbital quantum number l, the magnitude of the angular momentum is expressed by ...
Q: The far point of a certain myopic eye is 50 cm in front of the eye. Find the focal length and power ...
A: Given data V=-50 cm
Q: An owner type jeepney 3 m long overtakes a truck 30m long which is travelling at the rate of 20kph. ...
A: Given data x=3 my=30 mST=20 km/hT=3 sec
Q: Determine the magnitude of the resultant force (in N) of the coplanar force system shown in the figu...
A: Detailed solution is given below:
Q: The velocity of the particle with charge q = 1.6 x 10-19 C is 2.5 × 105 m / s at point A. When the p...
A: Given, Charge,Q=1.6×10-19CVelocity,v=2.5×105m/sDiameter,D=30cm=30×10-2mRadius,R=15cm=15×10-2mMagneti...
Q: In the circuit shown in the figure, we have 4 resistors and an ideal voltage source. Determine: (a) ...
A:
Q: The displacement of a particle is given by the expression x = (5.00 m) cos(3.00πt + π /4),where x is...
A:
Q: What is the critical angle for total internal reflection for light moving in a diamond that is subme...
A: Critical angle is the angle of incidence in denser medium for which angle of refraction in rarer med...
Q: In the circuit shown below, the current flowing through a 2.00 Ω resistor is I3 = 0.91 A. What is th...
A:
Q: The velocity of the particle with charge q = 1.6 x 10-19 C is 2.5 × 105 m / s at point A. When the p...
A: Given: Velocity of particle v=2.5×105ms-1 Charge on the particle: q=1.6×10-19 C Magnetic field B=0.4...
Q: At a construction site, a65.0 kg bucket of concrete hangsfrom a light (but strong) cablethat passes ...
A: Given: Mass of bucket of cement,mc=65 kgMass of box,mb=80 kgMass of gravel,mg=50 kgStatic friction f...
Q: A flywheel 6 ft in diameter accelerates from rest at a constant rate of 4 rpm per sec. Compute the n...
A: Given Flywheel diameter = 6 ft = 1.83 meter Angular acceleration = 4 rpm/s =α = 4×2π60 rad/sec ...
Q: Help me
A: To find the potential difference, ∆V we know as electron moves through the magnetic field energy is ...
Q: VI
A: Nuclear Magnetic Resonance (NMR) The non-zero total angular momentum of atomic nuclei makes it possi...
Q: Angular momentum plays a key role in dealing with central forces because it is constant over time. S...
A: Property 1: By the nature of cross product L is in the direction perpendicular to both the direction...
A student asserts that silicon and germanium become good insulators at very low temperatures and good conductors at very high temperatures. Do you agree? Explain your reasoning.
Step by step
Solved in 2 steps
