Continued
... If an object has a net force acting on it, it will accelerate. The object will speed up, slow down or change direction. An unbalanced force (net force) acting on an object changes its speed and/or direction of motion. An unbalanced force is an unopposed force that causes a change in motion. A net fo ...
... If an object has a net force acting on it, it will accelerate. The object will speed up, slow down or change direction. An unbalanced force (net force) acting on an object changes its speed and/or direction of motion. An unbalanced force is an unopposed force that causes a change in motion. A net fo ...
ƒ A S ƒ ƒ B
... friction force ƒ parallel to the surface. When a body is sliding over the surface, the friction force is called kinetic friction. Its magnitude ƒk is approximately equal to the normal force magnitude n multiplied by the coefficient of kinetic friction mk . When a body is not moving relative to a sur ...
... friction force ƒ parallel to the surface. When a body is sliding over the surface, the friction force is called kinetic friction. Its magnitude ƒk is approximately equal to the normal force magnitude n multiplied by the coefficient of kinetic friction mk . When a body is not moving relative to a sur ...
ch.14 student notes
... A transverse wave is one that vibrates perpendicular to the direction of the wave’s motion. If you squeeze together several turns of the coiled-spring toy and then suddenly release them, pulses of closely-spaced turns will move away in both directions, as shown in the figure. This is called a longit ...
... A transverse wave is one that vibrates perpendicular to the direction of the wave’s motion. If you squeeze together several turns of the coiled-spring toy and then suddenly release them, pulses of closely-spaced turns will move away in both directions, as shown in the figure. This is called a longit ...
Ch 14 Solutions Glencoe 2013
... 32. Superposition of Waves Sketch two wave pulses whose interference produces a pulse with an amplitude greater than either of the individual waves. ...
... 32. Superposition of Waves Sketch two wave pulses whose interference produces a pulse with an amplitude greater than either of the individual waves. ...
Exam Review B (with answers)
... 55. The closest star to our solar system is Alpha Centauri, which is 4.12 x 1016 m away. How long would it take light from Alpha Centauri to reach our solar system if the speed of light is 3.00 x 108 m/s? Provide an answer in both seconds and in years. {1.37 x 108 s or 4.35 years} 56. A car is trav ...
... 55. The closest star to our solar system is Alpha Centauri, which is 4.12 x 1016 m away. How long would it take light from Alpha Centauri to reach our solar system if the speed of light is 3.00 x 108 m/s? Provide an answer in both seconds and in years. {1.37 x 108 s or 4.35 years} 56. A car is trav ...
EM theory and its application to microwave remote sensing
... It is sometimes useful to refer to a medium’s refractive index, n, where n 2 r r j r or n r ...
... It is sometimes useful to refer to a medium’s refractive index, n, where n 2 r r j r or n r ...
Wavelength
In physics, the wavelength of a sinusoidal wave is the spatial period of the wave—the distance over which the wave's shape repeats, and the inverse of the spatial frequency. It is usually determined by considering the distance between consecutive corresponding points of the same phase, such as crests, troughs, or zero crossings and is a characteristic of both traveling waves and standing waves, as well as other spatial wave patterns. Wavelength is commonly designated by the Greek letter lambda (λ). The concept can also be applied to periodic waves of non-sinusoidal shape. The term wavelength is also sometimes applied to modulated waves, and to the sinusoidal envelopes of modulated waves or waves formed by interference of several sinusoids.Assuming a sinusoidal wave moving at a fixed wave speed, wavelength is inversely proportional to frequency of the wave: waves with higher frequencies have shorter wavelengths, and lower frequencies have longer wavelengths.Wavelength depends on the medium (for example, vacuum, air, or water) that a wave travels through.Examples of wave-like phenomena are sound waves, light, and water waves. A sound wave is a variation in air pressure, while in light and other electromagnetic radiation the strength of the electric and the magnetic field vary. Water waves are variations in the height of a body of water. In a crystal lattice vibration, atomic positions vary.Wavelength is a measure of the distance between repetitions of a shape feature such as peaks, valleys, or zero-crossings, not a measure of how far any given particle moves. For example, in sinusoidal waves over deep water a particle near the water's surface moves in a circle of the same diameter as the wave height, unrelated to wavelength. The range of wavelengths or frequencies for wave phenomena is called a spectrum. The name originated with the visible light spectrum but now can be applied to the entire electromagnetic spectrum as well as to a sound spectrum or vibration spectrum.