At what temperature is the speed of sound in air 350 m/s?
Q: A Si sample in thermal equilibrium at 300 K, with dimensions of width 0.05 cm, length 0.5 cm and thi...
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Q: The figure below shows wave fronts of sound waves from the siren of a police car. Two people on both...
A: Original frequency of siren fo = 400 Hz Speed of sound in air v = 340 m/s Speed of both person vo = ...
Q: A book slides off a horizontal tabletop. As it leaves the table's edge, the book has a horizontal ve...
A: The first initial horizontal velocity of the block is given as, ux=vo. The next initial horizontal v...
Q: ightbulbs A and B are connected to a battery as shown below. When connected to a 120.0 V potential d...
A: The problem is based upon the concept of power. We know that power can be defined as rate of doing w...
Q: A vehicle with a mass of 2.40 * 103 kg is driving at a speed of 25.0 m/s. When the driver uses the b...
A: Mass of the car =2400 kgInitial velocity u=20 m/sFinal velocity v=0 m/s mass of car= 2.4 * 103 Kg in...
Q: In the figure, which arrow designates the angular displacement of the pendulum's motion? O arrow A O...
A: We have given the motion of the pendulum at an angle θ with the vertical.
Q: A piece of metal weighs 45 gms in air and 25 gms in a liquid of density 1.5 x 10°kg-m kept at 30°C. ...
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Q: A racing automobile is traveling at 40.0 m/s around a 265-meter- radius circular circuit. Calculate ...
A: Given data Automobile traveling with speed v = 40 m/s Radius of circular circuit (r) =...
Q: What is the value of the inductance L? Express your answer with the appropm » View Available Hint(s)
A: The inductance is expresses using the formula as, Vrms =Io22πfLL=2 Vrms2Ioπf
Q: At a football tryout, a player runs a 40-yard dash in t2 = 4.25 seconds. If the reaches his maximum ...
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Q: A basic pendulum (a mass swinging at the end of a string) moves in a circular arc. What is the direc...
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Q: In the figure below, a long rectangular conducting loop, of width L = 8 cm, resistance R = 10 N, and...
A: Given a long rectangular conducting loop with width L = 8cm = .08m Resistance R = 10 Ω m = .09 kg al...
Q: From the fig two long straight wires carrying electric currents in opposite directions, and separati...
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Q: A sound wave in a tube or a string is a special case of a wave called?
A: We need to know nature of sound waves formed in tube or string
Q: Four capacitors, all with capacitance C, are connected in series as shown in Figure C. What is th eq...
A: Given: Four capacitors are connected in series as shown,
Q: A car starts from rest with an acceleration of 4.6 m/s2 which decreases linearly with time to zero i...
A: The problem is based upon the concept of distance time and acceleration. We know that area under acc...
Q: The segment of wire in the Figure, carries a current of I = 3.00 A, where the radius of the circular...
A: Given: Current in the wire segment, I=3 A Radius of the circular arc, R=2.5 cm To find: Magnitude an...
Q: A 3.4 Hz continuous wave travels on a Slinky. If the wavelength is 0.69 m, what is the speed of wave...
A: Given that,Frequency of the wave : f = 3.4 (Hz)Wavelength : λ = 0.69 (m)Here we need to find the spe...
Q: An electromagnet as shown in the picture is used to create an atraction force F in the steel piece. ...
A: Given: The air gap is g=2.5 mm. The current through the coil is I=5 A. The cross sectional area is A...
Q: Draw the radial vectors for all three force vectors and indicate the angles between Find the net tor...
A: Given: The radius of the inner wheel is a = 0.10 m The radius of the outer wheel is b = 0.25 m The f...
Q: Is a cyclist accelerating if he is traveling around a curve at a steady speed? If this is the case, ...
A: Introduction: This question explains about a cyclist accelerating while cycling around a curve at a ...
Q: Two converging lenses with focal lengths of 35 cm and 54 cm are combined to make a single lens. Part...
A: Given that,Focal length of first lens, f1=35 cmFocal length of second lends, f2=54 cmWe can write:-F...
Q: 7. Determine la divergencia y el Laplaciano Vectorial de cada uno de los siguientes campos vectorial...
A: (a) The electric field is given as : E→=3x2x^+2zy^+x2zz^Divergence→∇→·E→=x^∂∂x+y^∂∂y+z^∂∂z·3x2x^+2z...
Q: a) What is the typical efficiency of a car? b) What is the maximum possible efficiency (Carnot effic...
A: Note :- Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the questi...
Q: The riders of a carnival amusement are spun within a flying-saucer- shaped vehicle. How many revolut...
A: Given that:Centripetal acceleration, ac=1.7gRadius, r=7.5 m
Q: A 0.013 kg rubber stopper attached to a 0.93 m string is swung in a circle. If the tension in the st...
A: mass m = 0.013 Kg length L = 0.93 m Tension in string T = 0.70 N Here, the length of the string acts...
Q: The kinetic energy of 1 kg of oxygen 300°K. Is 1.356 × 10 J. Find the kinetic energy 4 kg oxvgen at ...
A: To find-(K.E.)2 of oxygen=?Given-(K.E.)1=1.356×106 JT1=3000 KM1=1 kgT2=4000 KM2=4 kg
Q: A helium balloon floats in midair, without climbing or lowering. Is it in balance? What forces are a...
A: Given A helium baloon floats in midair we have to answer what are the forces working on it The answ...
Q: Is it required for a laser material to have at least three energy levels? If so, why or why not?|
A: LASER- Light Amplification by Stimulated Emission of Radiation.
Q: A basic pendulum (a mass swinging at the end of a string) moves in a circular arc. What is the direc...
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Q: In terms of photon-electron interaction mechanisms, compare the photoelectric and Compton effects an...
A: Both photoelectric effect and Compton an example of interaction of photons with matter . And both ar...
Q: In the circuit in the figure below, the batteries have negligible internal resistance. (Take R1 = 2....
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Q: ite directions., w
A: The expression for the force as, F=ma Here, F is the force, m is the object mass, and a is the accel...
Q: A soap bubble of radius a = 8 cm and a wall thickness of t = 3.3×10−6 m is charged to a potential of...
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Q: A light containing all wavelengths between 420 nm and 650 nm is incident on a grating with 500 slits...
A: Given: The range of wavelengths is 420 nm - 650 nm. The grating is 500 slits/mm. Thus, the width of ...
Q: ar etic field at the point P which is a
A: The magnetic field is given as,
Q: How would you decrease the period of the spring whose motion is shoWn in the graph? B Time O increas...
A: Spring mass system.
Q: The switch in the figure is closed at t=0, when the current is zero. When i =43 mA, what is the magn...
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Q: Plane in .25 A. Slate the Mimer indiceS and the direction vector of this plane. b) What is the dista...
A: Miller indices can be calculated from the x, y and z intercept. Using inter planar spacing i.e dista...
Q: la7 = II l07 I = IA7くA ニュ Ź lAi> <Aila7 = LOI
A: double struck capital I is the notation used for identity matrix.
Q: A forensic scientist examines a hair from a crime scene using a microscope with a 15x objective and ...
A: The magnification of microscope is given as, M=15. The magnification of eyepiece is given as, m=5. T...
Q: The segment of wire in the Figure, carries a current of I= 3.00 A, where the radius of the circular ...
A: The region of space near a magnetic body or a current-carrying body in which the magnetic forces due...
Q: 2. Determine the minimum value of P to just lift the block W = 500 N, where 0 = 20°, as shown. The c...
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Q: 4. A series RC circuit has an emf given by 100cos4t with R 150ohms and C = 0.04F. If there is no ini...
A: RC series circuit.
Q: Which force produces the largest torque? O 20.0 N perpendicular to the center of rotation at a radiu...
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Q: cing automobile is traveling at 40.0 m/s around a 26 us circular circuit. Calculate (a) the motion's...
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Q: Can an object be in equilibrium when only one force acts or Explain.
A: Object will be in equilibrium when the forces are balanced, that is the sum of all the forces that a...
Q: A vehicle weighing 900 kilograms is moving at a constant velocity of 20 m/s. Please find the normal ...
A: Given Mass of the vehicle (m) = 900 kilograms Velocity (v) ...
Q: 2- If the function describing the change in the electric field and magnetic field in a non-conductin...
A: Given,E=E0cos(wt-kz)iH=H0 cos(wt-kz)j
Q: If you attach a 150 g mass to the spring whose data are shown in the graph, what will be the period ...
A: Hey dear Have a look
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