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Astronomers are proud of their telescopes and often say they "resolve a dime at so many miles." How many miles can you move a disk (D=3 cm) froma 148 cm diameter telescope mirror and just resolve it using light of wavelength 553nm?
A square loop of wire consisting of a single turn is perpendicular to a uniform magnetic field. The square loop is then re-formed into a circular loop, which also consists of a single turn and is also perpendicular to the same magnetic field.
A light spring with spring constant 1200 N/m hangs from an elevated support. From its lower end hangs a second light spring, which has spring constant 1650 N/m. An object of mass 1.50 kg is hung at rest from the lower end of the second spring.
Consider a rectangular loop of wire 6.3 cm by 8.2 cm in a uniform magnetic field of magnitude 1.7 T. What is the average induced emf in the loop
A diverging lens (f = -10 cm) is located 20.0 cm to the left of a converging lens (f = 31.5 cm). A 3.00 cm tall object stands to the left of the diverging lens, What is the height of the final image
A uniform, solid metal disk of mass 6.50kg and diameter 24.0 cmhangs in a horizontal plane, supported at its center by a verticalmetal wire. You find that it requires a horizontal force of 4.23 Ntangent to the rim of the disk to turn it by 3.34 degre..
at what fractions of a wavelength do the first and second resonances occur?using dimensional analysis show that the
An 8.3kg crate is pulled 4.9m up a 30? incline by a rope angled 19? above the incline. What is the increase in thermal energy of the crate and incline
The driver of a car slams on the brakes when he sees a tree blocking the road. With what speed does the car then strike
A 9.4 cm diameter loop of wire is initially oriented perpendicular to a 2.3 T magnetic field. determine the average induced emf in the loop
The current is increasing at a rate of3.2A/s in an RL circuit withR=4.00ohmsandL=360mH. What is the total potential difference across the resistor and inductor at the moment when the current in the circuit is 3.0 A?
A hydraulic lift has pistons with areas 0.60m^2 and 5.30m^2 , and they're at the same height. how much mass can the larger piston support
A uniform electric field of magnitude 380 N/C pointing in the positive x-direction acts on an electron, What is the work done by the field on the electron
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