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A person's eyeball has a diameter D (measured from lens to retina). Their eye muscles can make the focal length of the lens 0.95D - 0.99D. Where is this person's near point and far point? Express your answer in terms of D.
solenoid is formed by winding 23.0 m of insulated silver (resistivity 1.59 x 10-8 Ω·m) wire around a hollow cylinder. The turns are wound as closely as possible without overlapping, and insulating coat on the wire is negligibly thin.
A wheel of radius 1.6m rotates at a uniform speed. If a point on the rim of the wheel has a centripetal acceleration of 2.3m/s2 , what is the point's tangential speed
Consider an airplane of wing area 6.8 m^2 (both wings combined) flying through air of density 1.13 kg/m^3. What is the net upward lift force on the plane
a 20 kg mass sits on an inclined plane with friction making an angle of 50 degrees with respect to the horizontal. calculate the frictional force required to keep the mass from sliding down the incline
Attaching this non-ideal voltmeter decreases the voltage across R2. Calculate the magnitude of this decrease using an emf of 14 V and R1 = R2 = 350 k?
Identical point charges of +3.6 ?C are fixed to diagonally opposite corners of a square. Find the sign and magnitude of the third charge
What other social and religious impacts is Fontanelle mentioning?
A student throws a set of keys vertically upward to his fraternity brother, who is in a window 3.60 m above. The brother's outstretched hand catches the keys 1.20 s later.
Standing waves on a 1.7m -long string that is fixed at both ends are seen at successive frequencies of 36 Hz and 54Hz. What is the fundamental frequency
A roller coaster, travelling with an initial speed of 15 meters per second, decelerates uniformly at -7 meters per second per second to a full stop. How far does the roller coaster travel throughout its deceleration.
What is the magnitude of the total linear acceleration of a piece of metal on the very outer edge of the flywheel 4.1 seconds after it started to rotate
A positively charged He+ atom has two protons in the nucleus and one electron in the shell. In a classic model of the atom, What is the radius of the orbit
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