Careful measurement of the electric field at the surface of a black box indicates that the net electric flux is going inward through the surface of the box is 9.0 kN-m2/C. What is the net charge inside this unknown box? (en m2) = 8.854 × 10–12 C²/N-

Q: In thinking about satellite altimetry, when the distance between a satellite and the ocean surface i...

A: When there are two masses there is always a force of attraction between them. This force is given as...

Q: A parallel-plate capacitor has plates of area 0.40 m2 and plate separation of 0.20 mm. The capacitor...

A: Plate area is A = 0.4 m2  Plate separation is d = 0.2 mm = 2×10-4 m  εo = 8.85×10-12 C2/N.m2   

Q: For the configuration shown in the figure below, suppose a = 5.00 cm, b = 20.0 cm, and c = 25.0 cm. ...

A:

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: A point charge of -5.0 nC is at the center of an imaginary sphere that has a radius equal to 0.50 m....

A: Q= -5nC  r= 0.5m  eo = 8.854× 10-12 C2/Nm2

Q: At 20°C, the carbon resistor in an electric circuit connected to a 5.0-V battery has a resistance of...

A:

Q: Point charges +5.00-µC and -4.00-µC are placed on the x-axis at x = 0 and x = 50.0 cm, respectively....

A:

Q: Two equal positive point charges q1 and x =0, y = -0.3 m, respectively. What are the magnitude and d...

A:

Q: Now, complete the conversion problems given below, for homework. 1. How many mm in 1.5 cm? Once you ...

A: 1. We know that 1cm is equal to 10mm, so 1.5 cm is equal to 15mm. Yes the answer makes sense.  2.We ...

Q: a positive surface charge density is present in a certain region on the surface of a solid conductor...

A:

Q: A charging RC circuit controls the intermittent windshield wipers in a car. The emf is 12.0 V. The w...

A:

Q: Mara is building a wind chime. She needs string with the following lengths: six pieces of 20 cm, 3 p...

A:

Q: •2. I went for a walk one day. I walked north 6.0 km at 6.0 km/h and then west 10 km at 5.0 km/hr. (...

A: Given that:-  He walked 6km north with speed of 6km/hr and then 10 km west with speed of 5km/hr. We ...

Q: A bicyclist is moving 6m/s when he is passed by another bicyclist. He instantly begins to accelerate...

A: Given  Bicyclist 1 is moving at 6m/s    bicyclist 1 accelerates at rate of 0.120 m/s2, he catches bi...

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...

A:

Q: Points aa and bb lie in a region where the yy-component of the electric field is Ey=α+β/y2Ey=α+β/y2....

A:

Q: The figure below shows a disk of radius 0.50 m is oriented with its normal unit vector n making an a...

A: Electric flux =2×103 N-m2/c Magnitude of electric field =10×103 N/C RRadius of disk= 0.5

Q: 20/S. calculate its uaunity arter traelly

A: Data Given ,  Starts from rest , so Initial speed ( u ) = 0 Acceleration ( a ) = 2 m/s2 Distance tra...

Q: Speakers A and B are 100 m apart and send out coherent sound waves with frequency of f = 200 Hz. Ali...

A: From the question its clear that there will be an interference of sound waves from speaker A and spe...

Q: A uniform disc of mass 3.0 kg and radius 25 cm is mounted on a fixed horizontal axle. A block with m...

A: Given that:- Mass of disc=M=3kg Radius of disc=R=25cm

Q: Multiple Choice.

A: As per Gauss law  The total charges included in a Gaussian surface is the algebraic sum and equal to...

Q: A parallel plate capacitor consists of two rectangular plates, each with an area of 4.5 cm? and sepa...

A:

Q: What is the magnitude of the electric field produced by a charge of 7 nC at a position away from it?...

A:

Q: Starting from rest, the motorboat travels around the circular path, ρ = 50 m, at a speed v=(0.2t^2)m...

A:

Q: Three blocks are connected on the table as shown below. The coefficient of kinetic friction between ...

A: Given: Mass of object 1 m1=4.25 kg Mass of object 2 m2=1.2 kg Mass of object  m3=2.4 kg

Q: In shallow water, surface waves travel with a speed which only depends on the acceleration due to gr...

A:

Q: To measure her speed, a skydiver carries a buzzer emitting a steady tone at 1800 Hz. A friend on the...

A: Given: The frequency of the steady tone emitted by the buzzer (source), fs = 1800 Hz. The frequency...

Q: Three charged particles are located at the corners of an equilateral triangle as shown in the figure...

A: q1=7×10-6C q2=1.6×10-6C L=0.61m

Q: Three long, straight wires are mounted on the vertices of an equilateral triangle as shown in the fi...

A:

Q: An electron is moving horizontally to the east in a uniform magnetic field that is vertical. It is f...

A: The right hand rule shows the direction of the induced current when a conductor attached to a circui...

Q: A solid sphere of redivs 30 cm is heated to so0°C before being pleced inside of a refrigerator wkose...

A:

Q: wo charges, q1 and q2 are separated by a distance r. If the distance between the charges will be inc...

A:

Q: Calculate the inductance (H) of an air cored coil that has a length of 11 cm, a core with rectangula...

A:

Q: A 20.8 foot long board, whose weight is 12.8 lbs, is supported from below on each end. A 164.1 lb pe...

A: Given  Length of board, L = 20.8 ft  Weight of board, W = 12.8 lbs  Weight of person , W1 = 164.1 lb...

Q: Two identical small charged spheres are a certain distance apart, and each one initially experiences...

A:

Q: Two point charges Q1 and Q2 of equal magnitudes and opposite signs are positioned as shown in the fi...

A:

Q: a chemist is doing some measurements with a thermometer that is accurate to 1 degree k and a pressur...

A:

Q: Part A How many kWh of energy does a 650-W toaster use in the morning if it is in operation for a to...

A:

Q: Determine the resistance of metal tube in term of the external diameter D, the internal diameter d ,...

A: Given: The external diameter of tube D = 10 cm. = 0.1 m. The thickness of the tube t = 0.5 cm = 0.00...

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

A:

Q: When a submarine dives to a depth of 119.7 m, to how large a total pressure (in MPa) is its exterior...

A: Given  Depth d = 119.7 m  Density of sea water = 1.03 g/cm3  = 1.03 × 103 kg/m3   Atmospheric pressu...

Q: 9. Parallel Rays. In a tank of water (index of refraction nw = 1.33) a cube of an unknown transparen...

A:

Q: The ink drops have a mass mmm = 1.00×10−11 kg each and leave the nozzle and travel horizontally towa...

A: Given: Mass of ink drop=1.00×10−11 kg velocity (v)= 15.0 m/s Length of parallel deflecting plates (D...

Q: 1. Considering the figure, calculate the needed force on the block that weighs 80kg to reach an acce...

A:

Q: Find I, and I, of the following shaded areas. d) 6 in 2 in 6 in 2 in

A: Given: The dimension of T is given below,  

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

A:

Q: The following image is of a voltmeter, which measures electric potential, in volts (V).   A: What ...

A: (A) In given figure of voltmeter we can see that 100 Volt is divided in 10 equal parts on circular s...

Q: 6 cm 4 cm What is the electric field inside the insulator at a distance of 4 cm? The permeability of...

A:

Q: Consider a ball thrown horizontally (neglecting air resistance). Explain why the horizontal componen...

A: Given A ball is thrown horizontally and air resistance is negligible.  

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.