Why do orchestras generally have greater number of stringed instruments than wind instruments?

Q: Superman leaps in front of Lois Lane to save her from a volley of bullets. In a 1-minute interval, a...

A: Force and impulse are impulse is related by,

Q: Why does the arc of a rainbow appear with red on top andviolet on the bottom?

A: Answer 

Q: What are three principal classes of musical instruments?

A: There are three different principal classes of musical instruments as follows: 

Q: Suppose you stand in front of a flat mirror and focus a cameraon your image. If the camera is in foc...

A: The free body diagram of the case,

Q: A rubber balloon is blown up and the end tied. Is the pressure inside the balloon greater than, less...

A: The elastic material of the balloon exerts a force. It adds to the external atmospheric pressure.

Q: A virtual image is often described as an image through whichlight rays don’t actually travel, as the...

A:

Q: The two mirrors in FigureP22.8 meet at a right angle.The beam of light in the verticalplane P strike...

A: a)Refer the given figure, the required distance is,

Q: A diverging lens has a focal length of magnitude 20.0 cm.(a) Locate the images for object distances ...

A: Write the equation for lens.

Q: A goldfish is swimming inside a spherical bowl of water havingan index of refraction n = 1.333. Supp...

A:

Q: A speeder tries to explain to the police that the yellow warninglights she was approaching on the si...

A: Write the expression for observed frequency when the source is stationary

Q: The temperature difference between the inside and the outside of a home on a cold winter day is 57.0...

A: Given:Temperature difference = 57˚ F

Q: A high-speed lifting mechanism supports an 800.- kg object with a steel cable that is 25.0 m long an...

A: (a) Elongation of the cable is,

Q: Sucrose is allowed to diffuse along a 10.- cm length of tubing filled with water. The tube is 6.0 cm...

A:

Q: An object is placed15.0 cm from a first converginglens of focal length 10.0 cm. A second converging ...

A: a). Formula to calculate the image distance is,

Q: An object is placed 20.0 cm from a concave spherical mirrorhaving a focal length of magnitude 40.0 c...

A: (a)The ray diagram for the given situation is,

Q: A thin 1.5-mm coating of glycerine has been placed between two microscope slides of width 1.0 cm and...

A: Given:Distance between two microscopic slides (d) = 1.5 mm = 1.5×10-3 mDynamic viscosity (η) = 1.5 N...

Q: Light containing wavelengths of 400. nm, 500. nm, and650. nm is incident from air on a block of crow...

A: a)The refractive indexes are,

Q: A dedicated sports car enthusiast polishes the inside and outsidesurfaces of a hubcap that is a sect...

A: Part a:

Q: Following a collision in outer space, a copper disk at 850°C is rotating about its axis with an angu...

A: Part A:

Q: What are the wavelengths of electromagnetic waves infree space that have frequencies of (a) 5.00 x 1...

A: Part A:

Q: (a) For what frequencies does a 22.0 - µF capacitor have a reactancebelow 175 Ω? (b) What is the rea...

A: (a)Given:C = 22.0  µFXC = 175 Ω

Q: (a) Does the phase angle in an RLC series circuit depend onfrequency? (b) What is the phase angle fo...

A:

Q: The Golden Gate Bridge in San Francisco has a main span of length 1.28 km, one of the longest in the...

A: Part A:

Q: A beam of laser light with wavelength 612 nm is directedthrough a slab of glass having index of refr...

A:

Q: The block of ice (temperature 0°C) shown in Figure P9.53 is drawn over a level surface lubricated by...

A: Force is,

Q: Suppose you want to use a converging lens to project theimage of two trees onto a screen. One tree i...

A: The screens must be moved towards the lens.

Q: How many times will the incident beam shown in FigureP22.17 be reflected by each of the parallel mir...

A: Re-draw the diagram.

Q: Figure P23.59 shows a converging lens with radii R1 = 9.00 cmand R2 = -11.00 cm, in front of a conca...

A: Given that the radii of curvature for the left face of the lens is 9.00 cm and the radii of curvatur...

Q: For safety in climbing, a mountaineer uses a nylon rope that is 50. m long and 1.0 cm in diameter. W...

A: Young’s modulus is given by,

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 str...

A: The density of the air,

Q: Convert 3.50 x 103 cal to the equivalent number of (a) kilocalories (also known as Calories, used to...

A: a)The required energy in kilocalories unit,

Q: When a 4.0 - µF capacitor is connected to a generatorwhose rms output is 30. V, the current in the c...

A: Capacitive reactance is given by

Q: Can a converging lens be made to diverge light if placed in aliquid? How about a converging mirror?

A: A converging lens can be made to diverge light if placed in a liquid. If the liquid has a higher ind...

Q: Figure CQ10.9 shows Maxwell speed distributions for three different samples of oxygen (O2) gas. (a) ...

A: The relation between the temperature and the rms speed is

Q: A concave makeup mirror is designed so that a person 25 cmin front of it sees an upright image magni...

A: Given:Object distance (u) = 25 cm

Q: The rainbow of visible colors in the electromagneticspectrum varies continuously from the longest wa...

A:

Q: (a) An ideal gas occupies a volume of 1.0 cm3 at 20.°C and atmospheric pressure. Determine the numbe...

A: Given:Occupied volume of an ideal gas (V) = 1.0 cm3.Temperature (T) = 20˚ C.Atmospheric pressure (P)...

Q: Why doesn't energy added to boiling water increase the temperature of the water?

A: When the water is boiling, it is on the course of undergoing a phase transition from its liquid stat...

Q: The Earth reflects approximately 38.0% of the incidentsunlight from its clouds and surface. (a) Give...

A: Write the expression for pressure due to the reflected light

Q: A piece of wire is bent through an angle u. The bent wire ispartially submerged in benzene (index of...

A: the angle of incidence is 90-30=60 degrees,the snells law is, 

Q: A popular brand of cola contains 6.50 g of carbon dioxide dissolved in 1.00 L of soft drink. If the ...

A: Ideal gas equation is,

Q: A certain Christmas tree ornament is a silver sphere havinga diameter of 8.50 cm. (a) If the size of...

A: The formula to calculate the focal length of the mirror is,

Q: The surface area of an unclothed person is 1.50 m2, and his skin temperature is 33.0°C. The person i...

A: (a). the rate of energy radiated by the body can be calculated using the formula

Q: The primary coil of a transformer has N1 = 250. turns, and itssecondary coil has N2 = 1 500. turns. ...

A:

Q: A 0.200-kg aluminum cup contains 800. g of water in thermal equilibrium with the cup at 80.°C. The c...

A: Given,

Q: A 24.0 - kΩ resistor connected to an AC voltage source dissipatesan average power of 0.600 W. (a) Ca...

A:

Q: Suppose an Olympic diver who weighs 52.0 kg executes a straight dive from a 10-m platform. At the ap...

A: Given:Mass of Olympic diver (M) = 52.0 kgDistance between surface of water and diver at apex of dive...

Q: Determine the maximum angle ufor which the light rays incident onthe end of the light pipe in Figure...

A:

Q: A bar of gold (Au) is in thermal contact with a bar of silver (Ag) of the same length and area (Fig....

A: Given:Length and area of gold and silver bars are equal. Temperatures of their end are given. 

Q: (a) Use the thin - lens equation to derive an expressionfor q in terms of f and p. (b) Prove that fo...

A: a). The thin lens equation is       

Shock Waves

Shock waves are common in continuum mechanics, and their dominance is attributable to the fact that they are stronger (or even less) compressible. Substantial perturbations propagated as sudden dynamic changes of a compressible medium supersonically. Shock waves are all around us in our daily lives. Lightning, earthquakes, volcanic eruptions, and meteorite impact all produce them in nature. Even the earth, which is protected by its magnetic field, generates a shock wave as in solar wind that travels around 20 Earth radiuses. These shock waves might be either constant, linked to the body, or unsteady, i.e., moving around with time. All of the shocks mentioned above can be damaging, so precautions must be taken to reduce their impact.