Two small beads having positive charges 3q and q are fixed at the opposite ends of a horizontal, insulating rod, extending from the origin to the point x = d. As shown in Figure P23.10, a third small charged bead is free to slide on the rod. At what position is the third bead in equilibrium? Can it be in stable equilibrium?

Q: Calculate the speed of sound on a day when a 2250 Hz frequency has a wavelength of 0.345 m.-

A: The frequency,   The wavelength,

Q: A virtual image is formed 18.0 cm from a concave mirror having a radius of curvature of 40.0 cm. (a)...

A: Given data: The distance of image is, v=-18 cm The radius of curvature is, R=40.0 cm Step 1: The ex...

Q: What is the total translational kinetic energy of the air molecules in a room of volume 23 m3 if the...

A:

Q: The inside diameters of the larger portions of the horizontal pipe are 2.50 cm. Water flows to the r...

A: Let d1 be the inner diameter of the cross-section of the larger horizontal pipe, and R be the flow r...

Q: Under what circumstances does distance traveled equal magnitude of displacement? What is the only ca...

A: Distance and displacement 

Q: The air inside a hot-air balloon has a temperature of 370 K and a pressure of 101.3 kPa, the same as...

A:

Q: A 10,040 Watt crane is lifting a load with constant speed of 0.3 m/s. What is the mass of the load? ...

A: Power of the crane, P = 10400 watt Constant velocity, v = 0.3 m/s g = 9.8 m/s2 Consider the force ex...

Q: Two small spheres hang in equilibrium at the bottom ends of threads, 40.0 cm long, that have their t...

A: The free body diagram of the two suspended sphere is shown below.

Q: A 1.6 meter long rope creates a wave which travels at 2.4 m/s and has a frequency of 1.5 Hz. What wo...

A:

Q: Eight bumper cars, each with a mass of 322 kg, are running in a room 21.0 m long and 13.0 m wide. Th...

A:

Q: Suppose a person is covered head to foot by wool clothing with average thickness of 2.00 cm and is t...

A: If dQ amount of heat crosses through any cross-section in time dT, then dQ/dT is called the heat cur...

Q: Two thin-shell conducting cylinders are coaxial, having the same central axis of symmetry. Cylinder ...

A:

Q: A particle’s acceleration along an x axis is a = 5t, with t in seconds and a in meters per second sq...

A:

Q: An object has a position function x(t) = 5t m. (a) What is the velocity as a function of time? (b) G...

A: The velocity (v) can be obtained by taking the first-order time derivative of the position (x) funct...

Q: Is it possible for a system to have an entropy change if it neither absorbs nor emits heat during a ...

A: Entropy is a measure of a system’s thermal energy per unit temperature that is unavailable for doing...

Q: A uniform, hollow, cylindri- cal spool has inside radius R/2, outside radius R, and mass M (Fig. P10...

A:

Q: A rectangular receiver with length 0.3 m and height 0.6 m receives 24 Watts of power. a)What is the...

A:

Q: A disk having moment of inertia 100 kg ⋅ m2 is free to rotate without friction, starting from rest, ...

A:

Q: A smoke alarm emits a signal of frequency 680 Hz.  The alarm goes off, and someone becomes so annoye...

A: Given data The frequency emitted by the smoke alarm is f = 680 Hz. The falling speed of an alarm is ...

Q: It is unlikely that a process can be isothermal unless it is a very slow process. Explain why. Is th...

A:

Q: A diverging lense has a focal length of magnitude of 19.0 cm. Locate the image and magnification for...

A:

Q: A freezer has a coefficient of performance of 6.30. It is advertised as using electricity at a rate ...

A: Given: The coefficient of performance of freezer = 6.3,             the power of the engine = 457 kW...

Q: Discuss the practical advantages and disadvantages of heat pumps and electric heating.

A:

Q: A ray of light is reflected by two parallel mirrors (1) and (2) at points A and B. The ray makes an ...

A: Given,

Q: In the control tower at a regional airport, an air traffic controller monitors two aircraft as their...

A: For Boeing plane, The position at north-west direction be given as,

Q: A police siren has a frequency of 500 Hz. An observer moving East with 20 m/s heard it as with frequ...

A: This problem is related to Doppler effect of sound. It states that if the source or the observer or ...

Q: A loop of radius a = 7.5 cm lays in the x-y plane, in a region of uniform, time-dependent magnetic f...

A: Given data The radius of the loop is a = 7.5 cm. The magnetic field given as B(t) = 1.5 (T/s)t k The...

Q: An ideal gas goes from state (pi, Vi) to state (pf, Vf) when it is allowed to expand freely. Is it p...

A: An ideal gas can expand by 4 processes: (1) Isobaric, (2) Adiabatic, (3) Isothermal, (4) Isoentropic...

Q: An ideal gas expands quasi-statically and isothermally from a state with pressure p and volume V to ...

A:

Q: A nonconducting ring of radius R is uniformly charged with a total positive charge q. The ring rotat...

A: Due to rotation of ring the current is,  

Q: An adventurous dog strays from home, runs three blocks east, two blocks north, and one block east, o...

A:

Q: In a location where the speed of sound is 354 m/s, a 1,770-Hz sound wave impinges on two slits 30 cm...

A: Angle of the first maximum can be calculated as -  .....(1) Where  D = Separation of two the slits  ...

Q: A piece of iron in water weights  15 N find the mass of the iron. The density of iron is 7860 kg/m3 ...

A: Given data *A piece of iron weighs is W = 15 N *Density of iron is d = 7860 kg/m3 *Acceleration due ...

Q: Laser light sent through a double slit produces an interference pattern on a screen 3.00 m from the ...

A: Light is having dual nature. One is particle and another one is wave nature. Interference of light g...

Q: A helium-filled balloon, whose envelope has a mass of 0.25 kg, is tied to a 2.0-m-long,  0.050-kg st...

A:

Q: A grinding wheel is in the form of a uniform solid disk of radius 7.00 cm and mass 2.00 kg. It start...

A:

Q: At an intersection of hospital hallways, a convex spherical mirror is mounted high on a wall to help...

A:

Q: A student is trying to decide what to wear. His bedroom is at 20.0°C. His skin temperature is 35.0°C...

A:

Q: A hungry bear weighing 700. N walks out on a beam in an attempt to retrieve a basket of goodies hang...

A: Weight of the bear, W1 = 700 N Weight of the beam, W2 = 200 N Length of the beam, L = 6.00 m Distanc...

Q: A heat engine operates between two reservoirs at T2 = 600 K and T1 = 350 K. It takes in 1.00 x 103 J...

A:

Q: In a Franck–Hertz experiment on hydrogen atoms, the first two excitation thresholds occur at 10.1 an...

A: The energy level diagram of the emission line is as below 

Q: An air-core solenoid with 66 turns is 8.00 cm long and has a diameter of 1.20 cm. When the solenoid ...

A:

Q: A copper wire has a density of 8920 kg per cubic meter, a radius of 1.5mm and an unknown length. The...

A:

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.