A 50.0 Watt stereo is played wide open… a) What will be the intensity of the sound 85 meters from the speaker ? (4.90 X 10-1 W/m2) b) What will be the relative intensity in deciBels at 85 meters ?

Q: A net force along the x-axis that has x-component Fx = −12.0N + (0.300N/m2)x2 is applied to a 5.00 k...

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Q: Part F3. Finding the plate separation distance Calculate the plate separation distance if the metal ...

A: Given: The area of the plate is 3 m2. The capacitance of the parallel plate capacitor is 1 F.   Aske...

Q: Determine the force exerted on a 1,500 kg object with an acceleration of 3 m/s2.

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Q: A uniformly charged conducting sphere of 1.2m diameter has a surface charge density of 1.8µC/m?. Fin...

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Q: 1. A particle decelerates uniformly at 3 m/s2 for 12 s and reached its destination at 24 m/s. a. Cal...

A: Ans 1: To calculate we have to use the formula v=u-ft , s=ut - (1/2) ft2.   

Q: A soccer ball is kicked from the ground with an initial speed of 19.4 m/s at an upward angle of 49.4...

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Q: 3. In the circuit of the figure shown, ɛ = 1.2 kV, C = 6.5 µF, R1 = R2 = R3 = 0.73 MO. With C comple...

A: Given that:- E=1.2kV

Q: 1. A 500.0 Ohm resistor is connected to a 1.5 V battery. (a) Calculate the current through this resi...

A: Given-Resistor=500 ohmVoltage=1.5VoltCurrent-Flow of electron in a conductor is called CurrentPower-...

Q: ) A proton (p) of mass 1.43-u(unified atomic mass units) traveling with a speed 4.13 x 104 m/s of ha...

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Q: Part 1) Seb lowers a box (initially at rest) from a height h, placing it on the ground. Which (if an...

A: Answer :-  If air Resistance were taken into consideration the path that the box takes from height h...

Q: Diagram of the problem, necessary formulas, clearance and numerical solution A boy of mass 45 kg is...

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Q: 5. Static F=25N 10kg

A: Given: The mass of the object is 10 kg. The applied force is 25 N in the vertically upward direction...

Q: A player kicks a football at an angle of 35° with the horizontal and with an initial velocity of 14....

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Q: A jogger runs 200 m in a direction 30° east of north and then 100 m in a direction 35 south of east....

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Q: A stone is thrown vertically upward from the ground with a velocity of 48.1 ft. per second. One seco...

A: First we need to find at which time they are at equal height which we get by equating both heights. ...

Q: For an RC circuit of the figure below determine:  a) what is the current in the capacitor 20.0 seco...

A: We have a RC circuit with EMF V=10 V, resistance R=200*103ohms and capacitance C=100*10-6F. We need ...

Q: Identify the three different gaussiaj surfaces.

A: To discuss three different gaussian surfaces.

Q: You launch a projectile at an initial speed of 37.4 m/s from the ground. After 2.80 seconds of fligh...

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Q: Part D. Capacitors Connected in Series Two capacitors, C1 = 106 µF and C2 = 53 µF, are connected in ...

A: A capacitor is a bipolar and linear electrical device which stores energy in the form of the electri...

Q: 6. A 5.00-kg body accelerates from 3.25 m/s to 9.75 m/s in 3.0 seconds when a force acts upon it. Fi...

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Q: 12.09 F=4.8N Benjamin Button carries a 200-N suitcase up three flights of stairs (a height of 10.0 m...

A: work done = force x displacement

Q: What must be the distance between point charge q1 = 26.3 μC and point charge q2 = -47.1 μC for the a...

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Q: Draw the FBD of this problem. An object weighing 95 N is suspended by two wires, the left wire makes...

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Q: What is the current in a 15.0-W light bulb when connected to a 131-V emf?

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Q: 10  Which among the choices is not a vector quantity?     Select one: a.  Electrostatic force ...

A: Step 1

Q: coar hove auniform acceleration of 8m/s? cwhat distance lt cover in 12 sec ofter 31977 a stacingc

A: Acceleration (a) = 8 ms2Initial velocity (u) = 0 mstime (t) = 12 sec   

Q: What will the reactions R1, R2 & R3 equal, given the loading and the dimensions of the frame below a...

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Q: An audomabilewehicle has a mas& of 14 00 What must be the force between the vehicle ond road ifthe v...

A: Given data :               Mass of vehicle  =  m               Acceleration  =  a                   ...

Q: 4. Agent Burt Engle is chasing some more "bad" dudes and dudettes, when he notices his fuel gauge is...

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Q: |Y Consider a system of three charges q, q and –2q placed at points A, B and C respectively as shown...

A: There are three charges q,q,-2q at point A,B,C.we have to find the magnitude of force at point A and...

Q: Two positive charges are located at the y-axis, with q1 having a magnitude of 3 nC and is located at...

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Q: t charge of 5 x 10 C experiences a force of 2 x 10 "N when kept in a uniform electric field of inten...

A: Given data :                Force  =  F               Change  =  q                   To find :      ...

Q: In the figure, two blocks are connected over a pulley. The mass of block A is 10.0 kg and the coeffi...

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Q: Calculate the gravitational potential energy of a 13.5 kg box on a shelf 7.0 m above the floor. Assu...

A: Given data :              Mass  =  m              Height  =  h             Gravity  =  g        To f...

Q: Use the work-energy theorem to find its maximum height. Express your answer with the appropriate uni...

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Q: Vector A = 3.0î – 4.0k. (a) Construct a unit vector that 3 %3D is parallel to A. (b) Construct a uni...

A: Given,A→ = 3.0 i^ - 4.0 k^

Q: A 325-N force accelerates a 50.0-kg crate from rest along a horizontal frictionless surface for a di...

A: force that is accelerating the crate is F = 325 N the mass of crate is m = 50 Kg according to the Ne...

Q: When a mass is placed on a spring with a spring constant of 15 newtons per meter, the spring is comp...

A: Given data:  Spring constant (k) = 15 N/m Spring compressed by length (x) = 0.25 m Required: Elastic...

Q: If the wire is drawn out to three times its original length in the previous problem, by how many tim...

A: 1.

Q: A wire 2.5 m long is bent (i) into a square and (ii) into a circle. If the current flowing through t...

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Q: According to Gauss’ law, when a long rod or wire is charged with a uniform linear charge density, th...

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Q: Three charged marbles are glued to a nonconducting surface and are placed in the diagram as shown. T...

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Q: A displacement vector is 21 km in length and is directed 60 degrees S of E. Which of the following i...

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Q: State the fundamental law of electric charge

A: Electric charges are Quantised.Like charges repel each other & charges which are opposite in nat...

Q: 5. What is the momentum of a system of two particles with these respective masses and velocities: 3....

A: momentum = mass x velocity

Q: A positive electric charge of 3 Coulombs is to be added to the combination of 6.25x10^18 e− and 3.12...

A: charge of an electron= -1.6 × 10^(-19) C Charge of p+= 1.6 × 10^(-19) C Number of e-= 6.25×10^18 Num...

Q: What is the total work WE done on the box by the appled force in this case? Express your answer in t...

A: The force due to friction is given by Ff = μN, where μ =  coefficient of friction, N = normal force....

Q: If an object is moving with constant acceleration, what is the shape of its distance vs. time graph?...

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Q: State the Fundamental Law of Electric Charge

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Q: A very strong, but inept, shot putter puts the shot (ball) straight up vertically with an initial ve...

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Stretched string

A stretched string is a wire which is made up of any metal that must have a larger length compared to its thickness. The ends of the wire are fixed, and when they oscillate or are plucked, it produces two reflected transverse waves of the same frequency and same amplitude. The waves or pulses are traveling in alternate directions and superimpose with one another. This waveform is named standing or stationary waves.