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A string of length 2.4 m consists of two sections with equal length.The left half has mass per unit length 0.00025 kg/m, while the right has a mass per unit length 0.00075 kg/m. Tension in the string is 989 N. Notice from the data given that this string has the same total mass as a uniform string of length 2.4 m and mass per unit length 0.0005 kg/m.
(a) Find the speed at which transverse wave pulses travel in the left section. Answer in units of m/s.
(b) Find the speed at which transverse wave pulses travel in the right section. Answer in units of m/s.
(c) Find the time required for a pulse to travel from one end of the string to the other. Answer in units of s.
A uniform rod of mass 3.20×10?2 and length 0.430 rotates in a horizontal plane about a fixed axis through its center and perpendicular to the rod. find the angular speed of the rod after the rings leave it
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An ant is 1.4 centimeter long and has a mass of 0.0002 kilogram. If an evil scientist enlarges ("scales up") the ant to be one hundred times as long, determine how massive will it be
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Each molecule of the substance unicornium can exist in either of two states; these states are different in energy by 25eV. At if one mole of unicornium is in equilibrium at room temperature, what is the fraction of atoms in the excited state? What is..
A monochromatic beam of X-rays with a wavelength of 0.290nm is scattered by a metal foil. what is the observed scattering angle
You place 106 moles of hydrogen gas in a balloon of volume 2.4 m3, and find the pressure to be 1.3 times atmospheric pressure. What is the typical speed of a hydrogen molecule
An ideal toroidal solenoid has a cross-sectional area of 0.560cm^2 , a mean radius of 12.0cm , and 1650 turns. What is the self-inductance of this solenoid
q1. a goldfish in a spherical fish bowl of radius r is at the level of the center c of the bowl and at distance l r2.8
A camera is supplied with two interchangeable lenses, whose focal lengths are 42.0 and 180.0 mm. What is the height (including sign) of her image on the image sensor
A jet is circling an airport control tower at a distance of 22.0 km. Find the distance traveled (in meters) by the jet as the observer watches the nose of the jet cross from one side of the moon to the other
question1. write a general expression of the flux f received from the sun as a function of luminosity of the sun l
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