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A plane mirror:
a) Produces both real and virtual imagesb) Always produces a virtual imagec) Always produces a real image
A quantity of ideal gas at 2°C and 80 kPa occupies a volume of 3.0 m3. How many moles of the gas are present
Two spheres of mass m and a third sphere of mass M form an equilateral triangle, and a fourth sphere of mass mB is at center of the triangle.
An electron orbiting a hydrogen atom has an initial energy of -0.544 eV. The atom emits a photon, then absorbs a photon, ending up with an energy of -3.4 eV. What was the wavelength of the emitted photon?
A strip of copper 20 mm wide and 550 µm thick is placed in a uniform magnetic field B of magnitude 0.55 T, with B perpendicular to the strip. What is the current density in this strip
Light from a heliom-neon laser (wavelength 632.8 nm) diffracts when incident on a hair of thickness 0.040 mm. What is the angular width of the central diffraction maximum
A charged sphere of mass 3.00E-04 kg is suspended from a string. Find the magnitude of the electric force
Albert stands on a frictionless turntable, holding a bike wheel. Both Albert and the wheel are initially stationary. find the final angular momentum had by the rest of the system
Both spacecraft are initially at rest. Explain how far does the starship move as it pulls the shuttlecraft aboard?
A model rocket rises with constant acceleration to a height of 3.8 , at which point its speed is 26 m/s How much time does it take for the rocket to reach this height.
A spherical surface completely surrounds a collection of charges. Find the electric flux (with its sign) through the surface if the collection consists of (a) a single +1.90 × 10-6 C charge, (b) a single -2.40 × 10-6 C charge, and (c) both of the ..
An electric car accelerates for 11 s by drawing energy from its 270-V battery pack. Find the minimum power rating of the car
A photoflash unit makes a very bright light for a very short time. Discuss differences in the exposure of the film with and without a flash unit. Consider the f-stop and shutter speed in your deliberation.
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