a positive surface charge density is present in a certain region on the surface of a solid conductor. Just above the surface of this region, the electric field A. None of the given choices B. Is equal to zero C. Points inward, toward the surface of the conductor D. Points parallel to the surface of the conductor E. Points outward, away from the surface of the conductor

Q: A particle of charge +18.7 C and mass 5.46 × 10-5 kg is released from rest in a region where there i...

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Q: Two small plastic spheres are given positive electrical charges. When they are 15.0 cm apart, the re...

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Q: 3. Iron Bar in the Ocean. A long iron bar 1 km in length is placed on the ocean floor. One end of th...

A: SOlution: length of iron bar L =1 km=1000 m

Q: SHOW the drawing and use 3 decimal in final answer   A bicyclist is moving 6m/s when he is passed ...

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Q: Two alpha particles (helium nuclei), each consisting of two protons and two neu trons, have an elect...

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Q: If an electron is accelerated from rest through a potential difference of 9.9 kV, what is its result...

A: Given Information:- Potential difference is ∆V=9.9 kV=9.9 kV×103 V1 kV=9.9×103 V Magnitude of charge...

Q: Ginny lifts a 17 kg super spud 0.5 m off the ground and did 85 J of work by placing the potato on a ...

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Q: A potential difference of 2000 V is established between parallel plates in air. becomes electrically...

A: Given  Potential difference across plates  V = 2000 volt Electric field intensity  E = 3 × 106 N/C T...

Q: located at (-7,-4.6)m and has a mass of 49.5 kg. Object 2 is located at (1.5,5)m and has a mass of 6...

A: Given  m1 = 49.5 kg  m2 = 64.1 kg  m3 = 34.7 kg  X coordinates  x1 = -7 m  x2 = 1.5 m  x3 = -0.3 m 

Q: erm 1 (UG .. The figure below shows nine point charges that lie in the same plane. Four Gaussian sur...

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Q: Batteries are rated in terms of ampere-hours (A · h). For example, a battery that can deliver a curr...

A: Given  Voltage = 12 V  Battery ratings = 55 A.h 

Q: An aeroplane moving horizontally with a speed of 720 km/h drops a food packet while flying at a heig...

A: Given in question - Horizonal speed of plane(V) = 720 km/hr                                  Height ...

Q: An asteroid is in an elliptical orbit with a semi-major axis of 3.5 AU and eccentricity of 0.3. Calc...

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Q: Where will friction be greater, when the plane is horizontal or tilted? Why?

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Q: The wheel of an odometer used in measuring a linear distance has a radius of 18cm.  How many turns i...

A: Data Given ,  Radius of the wheel ( R ) = 18 cm = 0.18 m Distance covered ( d ) = 26 m Let , The no....

Q: illUstrate the resultant vect0r 0f the f0ll0wing ph0t0 using the head to tail meth0d, then find the:...

A: A→ = 72.4 N @32o east of north C→ = 17.8 N due south To find : resultant of A→ and C→  

Q: a. Suppose that a membrane consists of two types of lipids, A and B. The A lipids assemble in large ...

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Q: Two point charges, Q1 and Q2, are separated by a distance R. If the magnitudes of both charges are d...

A: Given The point charges are given as Q1 and Q2   Formula From Coulomb's law we get the force between...

Q: The figure below shows a solid conducting sphere with radius R = 7.00 cm. Upon inspection, the elect...

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Q: Calculate the distance of separation between two electrons for which the electric force between them...

A: Given  m = 9.1*10-31 kg  q = 1.6*10-19 C  Gravitational force of one electron at the earth surface. ...

Q: 1. Given the diagram below, find the tension on cables A and B. 57.0° 75.0° 45.0kg

A: Given  M= 45.0 kg  Let T1 and T2 be the tension in both cables,

Q: Analysis/ Background: For this problem we have two identical aluminum rods,each of these rods is the...

A: When rod is heated its elastic property will changes so it its vibrational frequency will change. Th...

Q: 3. A 7.50 nC point charge is located 1.80 m from a 4.20 nC point charge. (a) Find the magnitude of t...

A: 3) first charge (q) = 7.50 nC second charge (Q) = 4.20 nC distance between the two charges (d) = 1.8...

Q: give 3 objectives for experiment bomb calorimeter

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Q: shaded region in the diagram below is a region of uniform electric field that is parallel to the hor...

A: Positive charge particle experience force in direction of electric field and negative charge experie...

Q: The potential difference between the plates of a parallel-plate capacitor is kept constant by a 20.0...

A: Potential difference is Vo = 20 V  Area of plate is A = 10 cm2 = 10×10-4 m2  => A = 10-3 m2  Dist...

Q: Determine the amount of current produced by a charge of 4.55×10-"C for 5 seconds along a straight co...

A: Given Charge = 4.55 × 10-17 C Time taken = 5 s We have to calculate electric current through straigh...

Q: A Gaussian surface with rectangular size has a positive point charge +q at its center, as shown in t...

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Q: Figure 27-11a shows a multiloop circuit containing one ideal battery and four resistances with the f...

A: Given value--- all value given in circuit. We have to find--- current through the battery?

Q: An athlete starts from a standstill position with a constant acceleration during 9.95 sec until reac...

A: Just use the formula to find out acceleration.

Q: As shown below, water is pumped into a tall, vertical cylinder at a volume flow rate of R=1 L/min. T...

A: Given: Volume flow rate =1 L/min Radius of cylinder(r) = 5 cm Frequency of tuning fork =512 Hz veloc...

Q: When an object is solely under the influence of conservative forces, the sum of its kinetic and pote...

A: Given  Influence of conservative forces, the sum of kinetic energy and potential energy is 

Q: Question 2. Determine the torque of the given physical quantities below. A particle of mass 2 moves ...

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Q: The circuit in the drawing shows two resistors, a C = 7.0 μF capacitor, and a V = 10 V battery. When...

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Q: al force of repulsion between two 1-C charges is 10N, how far a

A: The Formula of the electric force is given as  F = kq1q2r2 where q1 and q2 are the charges= 1 C  r i...

Q: a car covers 40 m in 9.45 s  while uniformly slowing down to a final velocity of 2.5 m/s a) find the...

A: Solution: Given that d = 40 m t = 9.45 s final velcity v =2.5 m/s

Q: A very small object carrying -6.0 µC of charge is attracted to a large, well-anchored, positively ch...

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Q: C) The object in this figure moves under the action of force 13N on a smooth surface. What is the ne...

A: Determine the horizontal component of the force.

Q: +20 +0 Four point charges of varying magnitude and sign are arranged on the corners of the square of...

A: The four charges present on the corners of a square are : Q , 2Q , -Q and 2 Q respectively .The side...

Q: In the arrangement shown below, an object can be hung from a string (with linear mass density µ = 0....

A: Assume the acceleration due to gravity of Earth as g=9.80 m/s2. The linear mass density of the strin...

Q: Consider a solid conducting sphere with radius R, as shown in the image below. The electric field on...

A: Radius of solid conducting sphere = R Let the charge on the sphere = Q The electric field on the sur...

Q: 3. Calculate in newtons the weight of a 2.5-kg melon. What is its weight in pounds?

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Q: Using dimensional analysis convert 12.6 Square Inch/Minute to Square Meter/Second (in2/min to m2/s)....

A: We have to convert ,  12.6 inch2/min =  how much in m2/sec  We know that ,  1 meter = 39.37 inch  So...

Q: In the hydraulic arrangement shown, the larger piston has an area that is fifty times that of the sm...

A: According to Pascal's law Pressure applied at one point of a liquid transmitted equally throughout.

Q: Define a Dimension and a Unit. State TWO (2) examples of Dimension and Unit. ?

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Q: Two stationary point charges +3.00 nCnC and +2.00 nCnC are separated by a distance of 50.0 cmcm. An ...

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Q: A flat surface of area 1.25 m2 is rotated through a uniform horizontal electric field of 5 N/C. What...

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Q: A +5.0-µC point charge is placed at the 0 cm mark of a meter stick and a -4.0-uC charge is placed at...

A: Given Charges are given as q1=+5.0 μC=+5.0×10-6 C and q2=-4.0 μC=-4.0×10-6 C Position of the first c...

Q: An ideal air-filled parallel-plate capacitor has circular plates that carry equal but opposite charg...

A: Capacitance of parallel plate capacitor C = ε₀A/d  where  A = plate area  d = plate separation

Q: A wood board floats in fresh water with 60% of its volume under water. The density of the wood is: A...

A: Given  Wood board floats in fresh water with 60% of its volume under water. 

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.