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A concave mirror has a focal length of 44.2 cm. The distance between an object and its image is 68.1 cm. Find (a) the object and (b) the image distance assuming that the object lies beyond the center of curvature.
A monochromatic source light source having a wavelength of 547 nm is used to check the calibration of a Michelson interferometer. how many fringes will move past this fixed point
What percentage of the neutrons would not interact if the concrete slab were made 36.0 cm thick? I know this is 1.305x10^1. B) How many centimeters thick would the concrete need to be so that 18.0 per cent of the neutrons are transmitted?
the gravitational force of attraction between two students sitting at their desks in physics class is 3.02 multiplied
In order to study the long-term effects of weightlessness, astronauts in space must be weighed (or at least "massed"). Find the mass of the astronaut
A 0.435 kg mass falls from a height of 3.95 m. how many photons would be produced
When a high-power laser is used in the Earth's atmosphere, the electric field associated with the laser beam can ionize the air, At this maximum intensity, what power can be delivered in a cylindrical beam of diameter6.81mm
consider a bright star in our night sky. assume its distance from earth is 20.9 light-years ly and its power output is
A hospital needs 1 millicurie of a radioactive pharmaceutical with a half-life of 12 hours. If delivery time takes 3 days, what activity must be shipped to the hospital by the supplier
An electron is launched at 4.7x10 6 m/s into a 2.8 T magnetic field. What is the diameter of its orbit
A sprinter crosses the finish line of a race. The roar of the crowd in front approaches her at a speed of 351 m/s. What is the sprinter's speed
In the Superconducting Super Collider that was planned to have beenbuilt in Texas this past decade, protons would be bent by amagnetic field and would move in a circle of radius 13.10 km.
A photon is emitted when a hydrogen atom undergoes a transition from the n = 6 state to the n = 1 state. Calculate values for the following. the wavelength. the energy of the emitted photon. the frequency
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