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The induced emf is a single loop of wire has a magnitude of 2.36 Vwhen the magnetic flux is changed from 0.912 T X m2 to0.233 T X m2. How much time is required for this changein flux? Show your work.
The temperature of the surface of a certain star is 7500 K. Most hydrogen atoms at surface of the star are in the electronic ground state. What is the approximate fraction of hydrogen atoms that are in the first excited state (and therefore could ..
Two 5.5-kg balls, each with a radius of 0.10 m, are in contact with one another. What is the gravitational attraction between the balls?
A merry-go-round rotates at the rate of 0.20 rev/s with an 80kg. man standing at a point 2.0 m from the axis ofrotation. find the change in kinetic energy due to the man's movement
Suppose atmospheric pressure at Denver is 1.0135 × 105 N/m2 today. How high will the water column stand on the barometer tube
in a television set electrons are accelerated from rest through a potential difference of 24 kv. the electrons then
The wavelength of red helium-neon laser light is 632.8 nm. What is the wavelength of the laser light in the class that has an index of refraction of 1.5 in units of nm, What is the speed of the laser light in the glass in units of 10^8 m/s
A charge q at the origin is at the back corner of an imaginary cube of edge length a. What is the electric flux through the shaded region (the plane at y=a)? (the picture that goes along with it shows a cube, and the side that is shaded is the vertic..
q1. a persons heart and head are 1.2m and 1.7m above the feet respectively. find out the potential energy associated
plan a picutre showing Mary's displacment due to rowing, her displacemnet due to the river's motion, and her net displacement.
a 2--tall object is 26 to the left of a lens with a focal length of 13 . a second lens with a focal length of -5 is 37
A particle moves along the x axis. It is initially at the position 0.130 m, moving with velocity 0.190 m/s and acceleration -0.330 m/s2. FIND the position of the particle after this time
A uniform plank of length 5.70 m and weight 215 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support. To what distance x can a person who weighs 452 N walk on the overhanging part of the plank before it just be..
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