You observe two point sources of light that are spaced 5 cm apart which are each...

You observe two point sources of light that are spaced 5 cm apart which are each emitting light of wavelength of 420 nm. If the diameter of your pupil is 2 mm, how distant can the objects be from your eye for you to just barely resolve them?

A long, straight wire carries a steady current of 50 A. What is the magnetic field strength at a distance of 7 cm from the wire?

Expert Solution

genius_generous answered 2 years ago

Two 2.0 cm ×2.0 cm square aluminum electrodes, spaced 0.80 mm apart, are connected to a...

Two 2.0 cm ×2.0 cm square aluminum electrodes, spaced 0.80 mm apart, are connected to a 200 V battery. Part A---- What is the capacitance? Express your answer in picofarads. Part B ----What is the charge on the positive electrode? Express your answer in coulombs.

1. Two 2.0 cm by 2.0 cm metal electrodes are spaced 1.0 mm apart and connected...

1. Two 2.0 cm by 2.0 cm metal electrodes are spaced 1.0 mm apart and connected by wires of the terminals of a 9.0 V battery. a. What are the charge on each electrode and the potential difference between them? b. If the wires are disconnected, and insulating handles are used to pull the plates apart to a new spacing of 2.0 mm, what are the charge on each electrode and the potential difference between them? c. If instead, the...

Two coherent wave sources 5 cm apart make ripples in a water tank, producing a Moire...

Two coherent wave sources 5 cm apart make ripples in a water tank, producing a Moire pattern. The wavelength of the waves is 3 cm. 1) Find the angle between the perpendicular bisector of the line joining the two sources and the direction of the 1st non-central maximum. 2) What is the direction of this 1st maximum if the two sources operate with opposite phases?. 3) How do the answers to 1) and 2) change if the wavelength is changed...

Two point charges of equal magnitude are 8.1 cm apart. At the midpoint of the line...

Two point charges of equal magnitude are 8.1 cm apart. At the midpoint of the line connecting them, their combined electric field has a magnitude of 40 N/C .Find the magnitude of the charges.

a. Two point charges each of magnitude +5.010-9 C are placed 8.0 cm apart in air....

a. Two point charges each of magnitude +5.010-9 C are placed 8.0 cm apart in air. Calculate, i. the electric potential, and ii. the electric field strength at a point, P which is 5.0 cm away from each charge. b. An electron of charge 1.610-19 C moves from a point midway between the charges and on the line joining them, to point P. i. Calculate the work done. ii. Discuss the energy changes in the process

Two large, thin, metal plates of 0.5mx0.5m face each other. They are spaced 2cm apart and...

Two large, thin, metal plates of 0.5mx0.5m face each other. They are spaced 2cm apart and have equal but opposite charges on their inner surfaces. a) if the magnitude E of the electric field between the plates is 700 N/C what is the magnitude of the charge on each plate? b) Integrate E across the gap between the plates to find the potential difference V and hence the capacitance C. c) Recalculate C using the parallel plate capacitator formula instead....

2. A capacitor consists of two metal plates, each 200mm by 300mm, spaced 9mm apart. The...

2. A capacitor consists of two metal plates, each 200mm by 300mm, spaced 9mm apart. The spaced between the metal plates is filled with mica 6mm thick and a layer of paper 3mm thick. The relative permittivity of the mica and paper are 9 and 6 respectively. Calculate: the i. capacitance and ii. electric field strength in each dielectric in kV/mm due to a pd of 10kV between the metal plates.

Two converging lenses, each of focal length 15 cm, are placed 52 cm apart, and an...

Two converging lenses, each of focal length 15 cm, are placed 52 cm apart, and an object is placed 30 cm in front of the first lens (a) Where is the final image formed with respect to the second lense? 60.8 cm behind the second lense 60.8 cm in front of the second lense 47.1 cm in front of the second lense 47.1 cm behind the second lense (b) What is the magnification of the system? 0.5 –1 –3.1 2.1

Two converging lenses, each of focal length 14.9 cm, are placed 39.5 cm apart, and an...

Two converging lenses, each of focal length 14.9 cm, are placed 39.5 cm apart, and an object is placed 30.0 cm in front of the first lens. Where is the final image formed? The image is located cm ---Location--- in front of the first lens. in front of the second lens. behind the second lens. What is the magnification of the system? M = ✕

Two converging lenses, each of focal length 14.9 cm, are placed 39.8 cm apart, and an...

Two converging lenses, each of focal length 14.9 cm, are placed 39.8 cm apart, and an object is placed 29.1 cm in front of the first. How far from the first lens is the final image formed? Answer in units of cm. What is the magnification of the system?

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