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What is the de Broglie wavelength (in angstrom) of an electron at 100 eV? What is the wavelength for electrons at 12 keV, which is typical of electron microscopes? Comparing this to visible light comment on the advantages of electron microscopes.
A circuit consists of a 215-Ω resistor and a 0.200-Hinductor. These two elements are connected in series across generator that has a frequency of 130 Hz and a voltage of 245 V.
Find the x and y components and the magnitude and direction of the electric field at the following points. Find the x and y components and the magnitude of the electric field at the origin.
a uniform meter stick with a mass of 135 g rotates about an axis perpendicular to the stick passing through the center
A thin spherical shell of mass 0.300 kg and diameter 0.190 m is filled with alcohol. It is then released from rest on the bottom of a pool of water. Find the acceleration of the alcohol filled shell as it rises toward the surface of the water.
Two acrobats, each of 60.0 kg, launch themselves together from a swing holdings hands. What should be the distance (in m) between the two swings
The liquid of density p in a horizontal pipe of diameter d1 before a constriction is at pressure P1 and flowing with the speed v1
A plane polarized EM wave propagates through a polymer. Such waves obey a similar wave equation to that found for free space. The wave has a magnetic field vector, ??=[(?1.2??)?sin(??y+??t)] ?T, with frequency ??=7.61×10^(14) Hz and wave number ??..
Two titanium spheres approach each other head-on with the same speed and collide elastically. What is the mass of the other sphere
q. a hot wheels track has a spring loaded launcher. a 100g car is pushed into the launcher which compresses the spring
A speedboat moves on a lake with initial velocity vector v1,x = 8.35 m/s and v1,y = -2.39 m/s, then accelerates for 6.81 seconds at an average acceleration of aav,x = -0.106 m/s2 and aav,y = 0.102 m/s2. What are the components of the speedboat\'s fin..
A 50 gram ball enters a a pendulum with mass 200 g. The pair then swings up to a height of 14.5 cm. Find the initial velocity of the ball before the collision
A spaceship needs to change its course thus that the magnitude of its momentum p remains the same but the direction changes by the angle α. Obtain the minimum time for which the engines must be turned on
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