A wire of resistivity 2.8 x 10^-8 ohm. m and length 20-m must dissipate electrical energy at a rate less than 3.0- W when a 15-A current flows. Calculate the minimum cross-sectional area of the wire.
Q: The equation for Work that says W = AEint can only be used for cases that are The equation for Work ...
A:
Q: Discuss and explain the one thing that enables a certain mass of air molecules to travel at a certai...
A: We’ll answer the second question since the exact one wasn’t specified. Please submit a new question ...
Q: In the relativistic free electron gas, the classical kinetic energy E = p²/2m is replaced by E = Vp?...
A:
Q: A 60 watt electric bulb loses its energy entirely by radiation from the surface of filament. If the ...
A: Power of bulb P = 60 W Surface area of filament is A = 4 cm2 = 4 × 10- 4 m2 Coefficient of emission ...
Q: hronous in orbit or
A: (a) T = 2π √(Re+h)3/√(gRe2) (Re+h)3 = T2gRe2 / 4π2
Q: Give the vectors M = -10å, + 4ảy-8ã, and vectors N = 8å, + 7ãy-2ãz, find the following: 1. a unit ve...
A:
Q: Two valves, one on top and one on the side, must be closed at the same time on an oil-field pump. Th...
A: Given data d1=27 ind2=27 inF1=45 lbF2=120 lb Here, d1 and d2 are the diameters of the valves, F1 is ...
Q: that are free to move between atoms and are experiencing no potential field (V(x) =0).
A:
Q: A long, straight wire carries a current of 10.0 A , as shown in the figure. (A) Use the law of Biot...
A: Biot-Savart's law is used to calculate the magnetic field generated by a current-carrying segment. A...
Q: Problems in Newton's Law of Cooling 1. A thermometer reading 750F is taken out where the temperature...
A: Given Data The thermometer reading is:To=75°F The temperature taken out is:Ts=20°F The temperature ...
Q: A spin half particle is prepared in the spin state |S) = 2|+) + (1 + V3i)l–). where |S) = |S - ân = ...
A: Given |S>=2|+>+1+3i|->|s>=|S.n^=12h>
Q: 5. For the following problems there is no need to consider the position vector. Simply find the magn...
A:
Q: A baseball is thrown straight up into the air with an initial velocity of 8 m/s from a height of 0.8...
A: Given that, Initial velocity : u = 8 (m/sec) Acceleration : a=−gApply the kinematics formula,Now, ...
Q: A mole of gas at initial temperature T comes into contact with a heat reservoir at temperature T, an...
A:
Q: ii. The velocity potential for a two dimensional flow is 0 = x(2y-1). Determine the velocity at the ...
A:
Q: Compane the sales of emission of heat by black body mainlained at 727 °c and at 227°C.
A: To compare-Rates of emission of heat by black body=?Given-T1=7270CT2=2270C
Q: 11.16 A projectile enters a resisting medium at x = (0 with an initial ve Vo = 900 ft/s and travels ...
A: The velocity of the system follows the equation, v=v0-kxinitial velocity, v0=900 ft/sif x=4 in=0.33 ...
Q: respectively. What is the thermal conductivity of the wood slab?
A: We need to calculate the thermal conductivity with known flux and temperature gradient.
Q: A child riding a merry-go-round that rotates with constant angular speed (radius r= 5.0 r old onto t...
A: Given: The radius is 5.0 m. The maximum grip force, FG is 0.01 N. The mass of c...
Q: A particle executes S.H.M. of period 12 second and amplitude 8 cm. What time will it take to travel ...
A: To find- (a) time (t)=? (b) Velocity of the particle (V)=? Given- Periodic time (T)=12 sec Amplitude...
Q: Find Ceq for the combination of capacitors shown below in image 1 and image 2. 1) Ceq = 2) Ceq =
A: Solution:-Given that
Q: 98. •A 20-g object is placed against the free end of a (k equal to 25 N/m) that is compressed 10 cm ...
A: The 20 g object is placed against the compressed spring, which is compressed by a distance of 10 cm....
Q: A rod of length L (Fig. P24.25) lies along the x axis with its left end at the origin. It has a nonu...
A: Given data : Line charge density = αx Length of the rod = L To find : (a) units of alpha (b) electr...
Q: (b) Use Gauss's Law to calculate the magnitude of the electric field E(r) at a distance r <R from th...
A: b. To calculate electric field from Gauss Law From Gauss Law we have ∮E.ds= Qenclosedε0where Qenclo...
Q: The human audible range is from 20 Hz to 20kHz sound of intensity 120 dB; beyond which is already pa...
A: We know that:- Let threshold of hearing of human ear is I0 Given the intensity level β=120 dB The in...
Q: Consider a 1,492 kg car cruising at constant speed of 59 km/h. Now the car starts to pass another ca...
A:
Q: A woman bails out of an airplane at an altitude of 15,000 ft, falls freely for 17 s, then opens her ...
A:
Q: Q. 16. A sodium chloride molecule has a natural vibrational 14 frequency 1-4 x 1013 Hz. Calculate th...
A:
Q: When we charge an object, we are actually transferring electrons (a negatively charged particle) fro...
A: Solution: An object is charged by the transfer of electrons. If an object loses the electrons it get...
Q: A wood slab with a thickness of 0.05 m is subjected to a heat flux of 40 W/m2. The left and right su...
A: Given that,Thickness : d = 0.05 (m)Heat flux : H = 40 (W/m2)T = 40°CT' = 20°CHere we need to find th...
Q: 1. Figure 1 shows a multi-loop circuit. Determine I1, l2 and l3. 2.5 Q 12 V 1.8 Q I: 2.6 Q 10 V
A:
Q: If the wavelength of a photon is 200nm, what is the energy in eV
A:
Q: Sway drives on a banked circular track with radius 99.0 m, and travels at a constant speed of 150 km...
A: The maximum velocity with which a vehicle can travel in a banked road with radius R, bank angle θ, a...
Q: An air-conditioner maintains the room temperature at 27 °C while the outside temperature is 47 °C. T...
A:
Q: 6. The conveyor belt is moving to the right at v = 6 ft/s, and at the same instant the cylinder is r...
A: Here we will use simple velocity relation
Q: for intrinsic semiconductor having band gap 0.7 eV. Calculate density of holes and electrons at roo...
A: Given: Intrinsic semiconductor Band gap, Eg= 0.7 eV Room temperature, T=27°C=300 K To find: Density ...
Q: 41. A line of positive charge is formed into a semicircle of radius R = 60.0 cm as shown in Figure P...
A:
Q: The cat Daisy (pictured to the left) enjoys sitting on her cat tree where she can both figuratively ...
A: Given: The height of the platform is h=3.5 ft. The initial launch velocity is va=15.5 fts. The angle...
Q: che electric field
A: Electric field E =kq/ r2 Where k = 1/4π€0 q = charge r = distance
Q: Chapter Review 1. A negatively charged 1.3 C metal object is in contact with a neutral metal sphere....
A: 1 is asked. Given: Negatively 1.3 C charge metal Metal sphere gain charge -0.3 after contact charged...
Q: An automobile starting from rest speeds up to 12 m/s with a constant acceleration of 1.2 m/s. Runs a...
A:
Q: An electron is constrained to the central axis of a ring of charge 1 coulomb and of radius 1 meter. ...
A:
Q: A woman bails out of an airplane at an altitude of 11,000 ft, falls freely for 19 s, then opens her ...
A:
Q: - (III) A skier of mass m starts from rest at the top of a solid sphere of radius r and slides down ...
A: By using Newton's 2nd law of motion and conservation of energy we can solve problem easily.
Q: Q2/ For the harmonic oscillator in classical limit, if the partition function is given by Z(B) = 1/(...
A: Given,Zβ=1βhωN Note: We’ll answer the first question since the exact one wasn’t specified. Please su...
Q: C2 = 4 F C = 7 F HE Сз 10 F HE
A:
Q: 1. A 3 kg ball moving to the right on a frictionless table at 5 m/s makes a head on collision with a...
A:
Q: An object moves with an initial velocity v3.30j m/s and an acceleration a2.70i mys, Assume the objec...
A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question s...
Q: The figure shows a parallel-plate capacitor of plate area A-11.1 cm and plate separation 2d-7.20 mm....
A:
Q: Problem 2 (30 points) An insulating rod has a total charge of 6.0- 10*C. Its total length is 30 cm l...
A: Answer..
D.02)
Step by step
Solved in 2 steps
