If a = 3.0 mm, b = 4.0 mm, Q, = 60 nC, Q2 = -80 nC, and q = 36 nC in the figure, what is the magnitude of the total electric force on q? Answer = 3.8 N a b Q1

Q: The molecular weight of nitrogen, N2, is 28 g/mol. What is the rms speed of nitrogen molecules in a…

A: molecular weight of N2 is, M=28 gmol=2810-3 kgmol=28×10-3 kgmol  (we used 1 gram = 10-3 kg)…

Q: A 3.9-L volume of ideal neon gas (monatomic) is at a pressure of 5.6 atm and a temperature of 330 K.…

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Q: A 20-g bead is attached to a light 120 cm long string as shown in the figure. This bead moves in a…

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Q: What is the ratio of the intensities of two sounds with intensity levels of 70 dB and 40 dB? Hint:…

A: The speed of sound is the rate at which sound waves travel through air. Natural observation…

Q: A mercury thermometer has a glass bulb of interior volume 0.10 cm3. The capillary tube above the…

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Q: A capacitor with a capacitance of 98 microfarads is discharged through a resistance of 81 kilo-ohms.…

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Q: If the intensity level of one trombone is 70 dB, calculate a reasonable estimate for the intensity…

A: Given: Intensity level of one trombone I1=70 dB To calculate resonance estimate for trombone having…

Q: You have been told that a fire is expected to spread at a rate of 150 feet per minute. What is the…

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Q: A package is oscillating on a spring scale with a period of 4.60 s. At time t = 0.00 s the package…

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Q: tem 2. How much energy is generated by a 1500-2 resistor connected to a 110-V source of potential…

A: Given data: Resistance, R=1500 Ω Potential difference, V=110 V Time interval, t=5 min=5×60 s=300 s

Q: A hole in a brass plate has a diameter of 1.20 cm at 20°C. What is the diameter of the hole when the…

A: Given that                    The coefficient of linear thermal expression for a brass is =…

Q: A store's sign has a mass of 20 kg and is 3.0 m long. It is uniform, so its center of gravity is at…

A: Draw the free-body diagram of the system.

Q: You push downward on a box at an angle 25° below the horizontal with a force of 750 N. If the box is…

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Q: The melting point of aluminum is 660°C, its latent heat of fusion Lf 4.00 x 105 J/kg, and its…

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Q: 1. Determine the charge on a typical fluorine (F) ion. (Hint: group 7, so it gains 1 electron: q. =…

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Q: Water, which we can treat as ideal and incompressible, flows at 12 m/s in a horizontal pipe w what…

A: GivenSection 1v1=12 m/sP1=3×104 Pa

Q: "hree charges are arranged as shown in the figure below. Find the magnitude and direction of the…

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Q: A steel wire, 3.2 m long, has a diameter of 1.2 mm. The wire stretches 1.6 mm when it bears a load.…

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Q: You are moving at 90 km/h toward a train which is moving toward you at 75 mi/h. The train blows its…

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Q: How much heat is required to raise the temperature of a 225-g lead ball from 15.0°C to 25.0°C? The…

A: Given : m = 225 g = 0.225 kg To = 15°C T = 25°C c = 128 J/kg.K

Q: Can you solve these problems and show steps with brief explanations where possible? Thank you!

A: Part AGiven

Q: A 0.25 kg harmonic oscillator has a total mechanical energy of 4.1 J If the oscillation amplitude is…

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Q: A solid cube 25.0 cm on each side is immersed in a fluid. The pressure at the top surface of the box…

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Q: The sound loudness 5.0 m from a point source is 95 dB. At what distance will it be 75 dB? Hint:…

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Q: A 1000-kg car is slowly picking up speed as it goes around a horizontal unbanked curve whose radius…

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Q: A fisherman fishing from a pier observes that the float on his line bobs up and down, taking 2.4 s…

A: Solution:-  To find the speed of the waves you can use the following formula: λ: wavelength of the…

Q: A machinist turns on the power on to a grinding wheel at time t = 0 s. The wheel accelerates…

A: First increment: ωo1=0 rad/sω1=58 rad/st1=10s second increment: ω2=58 rad/s   (constant)t2=30s third…

Q: Calculate the pressure exerted on the ground due to the weight of a 79-kg person standing on one…

A: Given data :- Mass of person = 79 kg Length of person's foot L = 28 cm = 0.28 m Width of  person's…

Q: A 3.0 kg brick rests on a perfectly smooth ramp inclined at 34° above the horizontal. The brick is…

A: Required  net elongation in spring

Q: A 350-g mass is attached to a spring whose spring constant is 64 N/m. Its maximum acceleration is…

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Q: A 2.0 kg mass at the end of a string is moving in a circular path of radius 0.75 m on a horizontal…

A: Write the given data. m= 2 kgr1=0.75 mv1=5 m/sr2=0.25 m

Q: A wire that is 6.0 m long is under tension. When a transverse wave of frequency 280 Hz travels along…

A: length L = 6.0 m frequency f = 280 Hz wavelength = 0.60 m

Q: The Figure shows a meter stick with the rotation axis at the midpoint. An unknown third mass hung at…

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Q: Suppose NASA wants a satellite to revolve around Earth 5 times a day. What should be the radius of…

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Q: An empty rectangular box of negligible mass measures 5.0 m long, 1.0 m wide, and 0.50 m high. How…

A: When the box is about to sink, weight of the box along with loaded mass is equal to byovant force…

Q: 9. An object accelerates 5.0 m/s when a force of 20.0 Newtons is applied to it. What is the mass of…

A: Given: Acceleration of object a = 5.0 m/s2 Applied force in F = 20 N   Find: mass of the object

Dielectric Constant Of Water

Water constitutes about 70% of earth.  Some important distinguishing properties of water are high molar concentration, small dissociation constant and high dielectric constant.

Electrostatic Potential and Capacitance

An electrostatic force is a force caused by stationary electric charges /fields. The electrostatic force is caused by the transfer of electrons in conducting materials. Coulomb’s law determines the amount of force between two stationary, charged particles. The electric force is the force which acts between two stationary charges. It is also called Coulomb force.