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The deflection in the moving coil galvanometer is reduced to half when it was shunted with a 40 ohm coil. The resistance of the galvanometer is what?
Find the mechanical energy of a block- spring system having a spring constant of 1.3 N/cm and an oscillation amplitude of 2.4 cm.
A uniform magnetic field points out of the page. The field fully penetrates a wire loop in the plane of the page. what is the averaged induced current
On a spacecraft two engines fire for a time of 578 s. One gives the craft an acceleration in the x direction of ax = 5.33 m/s2, Calculate the magnitude of the initial velocity
Two identical positive charges exert a repulsive force of 6.2 x10-9 N when separated by a distance of 3.6 x10-10 m. compute the charge of each.
A circular loop of flexible iron wire has an initial circumference of 169cm but its circ. is decr. Find the magnitude of the emf induced in the loop after exactly time 5.00s has passed since the circumference of the loop started to decrease
A 24kg chimpanzee hangs from the end of a horizontal, broken branch of length L0 = 1.4m , What is the shear modulus for this branch
In a dentist's office an X-ray of a tooth is taken using X-rays that have a frequency of 6.08 × 1018 Hz. What is the wavelength in vacuum of these X-rays
Tim walks half of the time and runs the other half. In terms of given quantities, in the special case that, what will be Tim's margin of victory.
Sunlight falls on two polarizers with their polarization axes oriented 57° to one another. What fraction of the light intensity is transmitted
Two loudspeakers face each other, vibrate in phase and produce identical 416 Hz tones. A listener walks from one speaker toward the other at the constant speed and hears the loudness change.
A converging lens of focal length 19.2 cm is separated by 55.3 cm from a converging lens of focal length 4.72 cm. If the height of the object is 3.10 cm, what is the height of the final image
Magnetoencephalography (MEG) is a technique for measuring changes in the magnetic field of the brain caused by external stimuli such as touching the body or viewing images of food. what is the magnetic field at the center of the hemisphere of the ..
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