Q: Determine the amount of heat needed to completely transform 1 g of water at 15°C to steam at 115°C.
A:
Q: Two point charges are arranged along the x-axis; q1=2.0 µC is at x=0.80m, and q2=2.0 µC at x=0.80m.…
A:
Q: An object of mass m = 3 kg moves in the x direction with the potential energy U (x) shown. There are…
A:
Q: Which combination of the vectors shown in (Figure 1) has the largest magnitude? O B - Å – C O Ã + B…
A:
Q: 1.The half-life of an isotope is 5 years. What fraction of the isotope will remain after 20 years?
A: GIVEN half-life of an isotope = 5 years To find out fraction of the isotope will remain after 20…
Q: Your friends contact lens prescription is -3.3 diopters. What is the focal length? Is your friend…
A:
Q: Problem 30.31: Figure below is a cross-sectional view of a coaxial cable. The center conductor is…
A:
Q: A square, single-turn wire loop { = 1.00 cm on a side is placed inside a solenoid that has a…
A:
Q: Rg object cycles per second. If the amplitude of the oscillation is 0.25 m, find the maximum speed…
A: b) mass= m = 2kg frequency = f = 5 Amplitude = A = 0.25 m
Q: A special kind of jet is shot in the water. If the jet is going with acceleration 2 m/s/s. What is…
A: The pressure inside liquid is only dependent on the height of liquid above the point of concern. The…
Q: Find the Fourier transform g(@) of the function f (t) below: TO TO -
A:
Q: If the ball was kicked from the ground gaining a velocity of 163 m/s at 17 degrees from the…
A:
Q: Discuss the movements by addressing the internal and external forces that apply to the movement of…
A: There are four forces on a basketball as it flies through the air.
Q: An object 1.50 cm high is held 3.20 cm from a person's cornea, and its reflected image is measured…
A:
Q: 1. A cyclist is competing in a race and is passing some competitors . The cyclist is initially…
A:
Q: To monitor the breathing of a hospital patient, a thin belt is girded around the patient's chest.…
A: emf =dϕdt= change in flux/time taken
Q: you are trying to keep your house warm in the winter. using the idea of conduction, convection, and…
A: Conduction is the transfer of energy from more energetic particles of a substance to adjacent less…
Q: Part A Two identical, thin rods, each with mass m and length L, are joined at right angles to form…
A:
Q: person
A: A basketball shooting arm model is used to estimate arm joint motions for a set of desired release…
Q: Karen is driving 65 km / h [E30S ] when suddenly she turns and is travelling at 45km / h S50E . If…
A:
Q: Nine idenlical point masses are connected by very stiff wires as shown. You may neglect the mass of…
A: Using conversation of energy for all the masses.
Q: For a diverging mirror, the focal length must be ____________. zero positive…
A: in Cartesian sign system convex mirror has negative radius and convex mirror has positive radius
Q: Find the value of force applied if work done is 240 J and displacement is 20 m.
A: Given: The work done is 240 J. The displacement of the object is 20 m.
Q: A charge of q, = +5 µC is located at (x,y)=(0,3) m. Another charge of q, = +5 µC is located at…
A: a) magnitude of Electric field at origin E1=kqr2=9·109·5·10-632=5000 N/C
Q: A M =7 kg mass is moving at vo = 8 m/s along a frictionless, horizontal = 800 N/m that is attached…
A:
Q: A long solenoid has n = 370 turns per meter and carries a current given by I = 35.0(1 - e1.60t ),…
A: GIVEN Turns in the solenoid n = 370 Current (I )= 35 ( 1- e -1.6t ) Radius R = 6 cm N = 250 To…
Q: ENERGY AND MOMENTUM 1. A 70 kg Bungee jumper jumps from a 200 m tall tower from rest. Unstretched,…
A:
Q: total magnification of this lens syStatement is;
A: Given: An extended object is placed at point O, 10 cm in front of a convex lens L1 and a concave…
Q: Given: ml=5.3 kg, m2=3 kg; Vli = 7 m/s; VIf = 4 m/s; 0-25 degrees Find Velocity V[2 and angle 02…
A:
Q: A wheel that initially rotates 19.2 rad/sec comes to rest after 5 seconds. How many revolutions does…
A: Given value--- initial angular velocity = 19.2 rad/s. final angular velocity = 0 rad/s. time = 5…
Q: A coil rated 700 Watts, 230 Volts, 60 Hz has a resistance of 60 Ω. What is the magnitude of the…
A: Given that- P=700 watts Vrms=230V f=60hz R=60ohm To determined that - What is the magnitude of the…
Q: 3. Nine idenlical point masses are connected by very stiff wires as shown. You may neglect the mass…
A:
Q: 3. Determine the currents I1, I2 and I3 in the circuit below using Kirchhoff's Laws.
A: Kirchhoff's rules: 1)The algebric sum of currents meeting at any junction is zero. i.e ∑I=0 and 2)…
Q: A loop of wire in the shape of a rectangle of width w and length L and a long, straight wire…
A: Given, length and width of the rectangular loop, L and w current in the straight wire, I Current…
Q: B
A: We have to use vector addition here
Q: For the given A→ draw B→ that will guarantee C = 0.
A:
Q: 3. On a vacation trip up in Oregon my boys decided to build a 10 kg raft that they made out of…
A:
Q: Let = 317 units @ 199.5 degrees B= 312 units @206 degrees C = 358 units @ 1949 degrees If D= A+ B+ Č…
A:
Q: What is the criteria to predict if an object will float, be suspended or sink?
A: Density is defined as the ratio of mass per unit volume. Archimedes principle said that buoyant…
Q: x 10-6 C the magr
A:
Q: If the power running through a power line is 10,000 watts and the voltage is 1000 volts then what is…
A:
Q: and an Oxygen H, =16. Both gas can be considered as ideal gases. At the same room temperature 20 C,…
A:
Q: Calculate the voltage if the resistance is 35 ohms and the current is 8 A ?
A: Given data : The value of current = I The value of…
Q: If the amplitude of an EM wave propagating through an unknown medium or substance is 2π N/C electric…
A: Given value--- electric field = 2 pi N/C. magnetic field = pi × 10-8 T. We have to find--- index…
Q: Question 2: The rod in the diagram is moving at a constant speed of 5.0 m/s perpendicular to a…
A: speed = V = 5 m/s magnetic field = B = 0.8 T length = l = 1.6 m resistance = R = 96 Ohms
Q: 4. A positive charge of 4.0 × 10–6 C exerts a force of repulsion of 7.2 N on a second charge 0.050 m…
A:
Q: An arrow is shot at an angle of θ = 45∘ above the horizontal. The arrow hits a tree a horizontal…
A:
Q: Part A A 175 g glider on a horizontal, frictionless air track is attached to a foxed ideal spring…
A:
Q: (a) Consider a box that is subjected to a constant net force F. The constant net force includes the…
A:
Q: Centripetal force F acts on a car going around a curve. If the speed of the car were twice as great,…
A:
Step by step
Solved in 2 steps with 2 images
- 10-17. Show that Cy 3 is the constant volume heat capacity of an ideal Fermi-Dirac gas if µo > kT, where f(ɛ) is the density of states.Silicon atoms with a concentration of 7× 1010 cm3 are added to gallium arsenide GaAs at T = 400 K. Assume that the silicon atoms act as fully ionized dopant atoms and that 15% of the concentration added replaces gallium atoms to free electrons and 85% replaces arsenic to create holes. Use the following parameters for GaAs at T=300 K: N. = 4.7 x 1017cm-3 and N, = 7 × 1018cm-3. The bandgap is E, = 1.42 eV and it is constant over the temperature range. The hole concentration?Q3/ An experiment was conducted to find the relationship between the specific heat of potassium metal and the temperature, and it was found that this relationship takes the following formula at low temperatures 2.08 +2.57 T2 What is the value of each of: (1) the fermi temperature of potassium? (b) Debye temperature of potassium? Note that specific heat is measured in units of mj / mol / K.
- A silicon ingot is stained with ( Nd = 10 ^ 16atom / cm ^ 3) ars enic atoms. A) Get the density of the carrier s and b) Get the Fermi level at r oom temperature T = 300k?Silicon atoms with a concentration of 7× 1010 cm3 are added to gallium arsenide GaAs at T = 400 K. Assume that the silicon atoms act as fully ionized dopant atoms and that 15% of the concentration added replaces gallium atoms to free electrons and 85% replaces arsenic to create holes. Use the following parameters for GaAs at T= 300 K: N. = 4.7 x 1017cm-3 and N, = 7 x 1018cm-3. The bandgap is E, = 1.42 eV and it is constant over the temperature range. The acceptor concentration?An atom’s nucleus is a collection of fermions— protons and neutrons. (a) In calculating the Fermi energy in a nucleus, the protons and neutrons must be considered separately. Why? (b) Find the Fermi energy of (i) the protons and (ii) the neutrons in a uranium nucleus, which has a radius of 7.4 x 10-15 m and contains 92 protons and 146 neutrons.
- The intrinsic carrier concentration of silicon (Si) is expressed as - E n₁=5.2×10¹5T¹.5exp- i electrons at 30°C. n = cm -3 g 2kT cm -3 where Eg = 1.12 eV. Determine the density of Round your answer to 0 decimal places.Silicon atoms with a concentration of 7x 1010 cm3 are added to gallium arsenide GaAs at T = 400 K. Assume that the silicon atoms act as fully ionized dopant atoms and that 15% of the concentration added replaces gallium atoms to free electrons and 85% replaces arsenic to create holes. Use the following parameters for GaAs at T = 300 K: N. = 4.7 x 1017 cm-3 and N, = 7 x 101cm-3. The bandgap is E, = 1.42 eV and it is constant over the temperature range. The donor concentration?Each atom of gold (Au) contributes one free electron to the metal. Compute the Fermi energy for gold.
- A state 63 meV above the Fermi level has a probability of occupancy of 0.090.What is the probability of occupancy for a state 63 meV below the Fermi level?Plot the Fermi function Vs. Energy at the temperature of 500 K, when EF = 2 eVUsing the method of the preceding problem, estimate the fraction of nitric oxide (NO) molecules at a temperature of 250 K that have energies between 3.451021 J and 3.501021 J. `