According to Gauss’ law, when a long rod or wire is charged with a uniform linear charge density, the electric field due to the uniform line of charge is proportional to ______, where  is the distance between the rod and the Gaussian surface. Select one: a. r2 b. 2r c. 1/r d. r

Q: Evaluate and express in 3 scientific notation (3 sigfigs) 1. (50×10⁵)⅔ 2. (36×10^-4)^1/2

A: Part 1 (50×105) 2/3 = 29240.177 In significant figure 29200

Q: The current in the figure below is 0.72 A. (Let the internal resistance of battery 1 be  r1 = 1.2 Ω...

A: GIVEN: internal resistances r1=1.2 ohm and r2=1.2 ohm emf  E1=6 V and E2=9 V NOTE : As per bartley g...

Q: Figure below shows the data from a bathroom scale as a woman jumps straight up and then lands. Match...

A: The normal force measured by the bathroom scale is as shown in the graph . The force is plotted alon...

Q: What is the required vertical upward acceleration  so that the pressure at any point in a liquid wil...

A: the pressure at a point which is at depth h from the free surface is given by P=ngh where  n is dens...

Q: You and your friends are doing physics experiments on a frozen pond that serves as a frictionless, h...

A: Given,mass of sofia, mS = 78.0 kgmass of elena, mE = 52.0 kginitial speed of sofia, v→s = vsi^initia...

Q: A 12.0 µC charge is placed at the origin while another charge, -8.0 µC is placed 1.0m to the right o...

A: electric field due to charge q at a distance x from the charge is given by  E = kq/x2  where k is co...

Q: 5.79 •• Block A in Fig. P5.79 weighs 1.20 N, and block B weighs 3.60 N. The coefficient of kinetic f...

A:

Q: Which among the choices is not a vector quantity?     Select one: a.  Electric field b.  Electr...

A:

Q: A 8.8 newton force imparts an impulse of 15 newton-seconds to an object. The force acted on the obje...

A:

Q: A traffic signal weighs 150 N and hangs above an intersection. It is supported equally by wires on e...

A: a) Draw the free-body diagram of the traffic signal.

Q: Compute for what is being asked in the problem. Round off final answers to TWO significant digits. 2...

A:

Q: What method of charging is illustrated in each situation? (Choices: conduction, friction, grounding,...

A: To answer this question, we must learn about various method of charging.  ● Conduction : In this met...

Q: Color indicates surface temperatures. (True or false)

A: We know every body emit and absorb the radiation.  

Q: Two parellel plates are charged. The separation between the plates is 2 cm and the magnitude of the ...

A:

Q: An ice cube of volume 15.0 cm' and density 917 kg/m’ is placed in ethyl alcohol of density 811 kg/m’...

A: Given data   The volume of ice cube,  V = 15cm3 = 15×10-6 m3 The density of ice cube, ρ1 = 917 kg/m3...

Q: A 2kg puck slides with uniform circular motion on a smooth surface. When the radius is 0.80m, the te...

A:

Q: and Change to (5omi) through the time in ter tal (4S), and edatance (kom) at that fime Calculate fth...

A: Vavg = total displacement/total time          = 140/4 Vavg = 35m/s   or, just do average of inital a...

Q: The best leaper in the animal kingdom is the puma, which can jump to a height of 3.7 m when leaving ...

A:

Q: How would I find slope

A:

Q: A circular curve of highway is designed for traffic moving at 75 km/h. Assume the traffic consists o...

A: Given value--- speed = 75 km/h. radius of curvature = 260 m. We have to find--- (a) If the radius...

Q: In which of the following situations is there no nett current? 1. A positively charged ion moves to ...

A: To check in which of the given situations there is no net current. Relevant Information: Current is ...

Q: An X-ray tube used for cancer therapy oper- ates at 41 MV with a beam current of 40 mA striking a me...

A: Given: V=41 MV = 41*106 VI =40 mA = 40*10-3 A

Q: Vhich of the following circuit has a total resistance of 15 2 if the total current in the circuit is...

A:

Q: Three spheres are cut from a certain uniform rock. The two spheres have a radius 4.50 cm. The mass o...

A:

Q: It is important to avoid sharp edges or points on conductors used in high-voltage equipment because ...

A: Given It is important to avoid sharp edges or points on conductors used in high-voltage equipment be...

Q: A 0.025 kg bullet is fired from a gun with a velocity of -230 m/s. If the gun has a mass of 0.26 kg,...

A: Given: The mass of the bullet is 0.025 kg. The velocity of the bullet is -230 m/s. The mass of the g...

Q: You launch a projectile with an initial speed of 36.4 m/s from the top of a building 34.4 m above th...

A:

Q: A stone manager pushes a 10 -kg box with a force of 25 N and directed at an angle of 37 °above horiz...

A: Given  Mass of the box is m=10 kg Angle above the horizontal is θ=37° Displacement of the box is d=4...

Q: 50 cm

A: According to Faraday law  Induced emf is the rate of change of magnetic flux.  And  Induced current ...

Q: QUESTION 7 side of a train which is accelerating forward, a ball of weight W is hanging by a light w...

A: GivenWeightof ball =Wat an angle ,θ

Q: The ammeter in the figure reads 3.0 A. Find I1, I2, and Ɛ.

A:

Q: Calculate much net Work per unit charge would it take to move a particle from a -15V potential to a ...

A:

Q: 2. Which of the following statements properly characterizes the motion of a heavy object thrown down...

A:

Q: Solve for the electric field 50cm away from a conductor that has a linear charge density of 25.0 µC ...

A:

Q: Metals are bonded by metallic bond, that is protons in a sea of electrons which give them their char...

A: given data :

Q: The rms current through a light bulb is 0.919 A when the bulb is connected to a standard 120 V rms s...

A:

Q: 7. A plane has an airspeed of 142 m/s. A 30.0 m/s wind is blowing southward at the same time as the ...

A: Given: speed of plane  v = 142 m/s (let θ° north of east) speed of wind u = 30 m/s (southwards) resu...

Q: At what depth of the ocean would the liquid pressure be equal to 3.0 atm? The density of seawater is...

A: Given, Pressure at the depth of the ocean, P = 3.0 atm density of sea water, ρ = 1025 kgm3

Q: OF dissection or stereoscope SCAnninG ELECTRon ΤΥPES COMPOUND MICROSCOPE MICROSCOPE micRoscopE (SEM)...

A: Step1: Overview  The scanning electron microscope has the highest magnification and greatest resolut...

Q: A circuit is constructed with four resistors, one capacitor, one battery and a switch as shown. The ...

A:

Q: An infinite sheet of charge with p=10 nC/m² exists at the plane y=2.0 m. An infinite linear charge w...

A: In this question we have to find the total electric field due to both distributions at the given poi...

Q: Arman wanted to establish a coordinate system where the direction of the rock’s motion is positive. ...

A:

Q: Birds resting on high-voltage power lines are a common sight. The copper wire on which a bird stands...

A:   We know resistance of a wire R=ρlA Where ? Is the resistivity of wire l = length of wire A = area ...

Q: Point charge q1= 5.1 x 10^-4 C and q2= 3.2 x 10^-3 C. are within the vicinity of each other. Because...

A:

Q: Now start at a and “walk" with I. Use the fact that V = 0. The voltage contribution at b is O IR. O-...

A:

Q: (ft) s = t2 + 2 Given the s-t graph beside, compute for the instantaneous acceleration at t = 1s and...

A: In time interval 1 to 1.23 s particle fallow the path S = t3 + t5 dsdt= 3t2 + 52 t3/2 d2sdt2= 6t + 1...

Q: What force would be needed to produce an acceleration of 4 m/s in a ball of mass 6 Kg

A: Given data :              Mass   =  m            Acceleration  =  a                  To find  :     ...

Q: A pair of parallel plates is charged by a 24-V battery. How much work is required to move a charge o...

A:

Q: Now, please check your simulation distance with the range predicted by the range equation. Assuming ...

A: PART C distance traveled=v2sin 2θg In this equation v=the launch velocity=10 m/sec=cannon speed used...

Q: Consider the pulley system below. Assume M1 = 10kg, and M2 = 40kg. Assume the pulley has no mass and...

A: The magnitude of acceleration of the system is given by  asys=Total External ForceTotal Massasys=(40...

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.