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Question: The spectrum of mercury contains a line at 435.8 nm in the blue region of visible light. What is the difference in energy levels in the atom that gives rise to this spectral line? Give the answer in both J and eV.
A spaceship is approaching a space station at a speed of 2.0 105 m/s. find the frequency of the beacon observed on the spaceship
A near-sighted person might correct his vision by wearing diverging lenses with focal length f = -45cm, Use ray tracing to determine the location of the image
A bullet of mass m = 28 g is fired into a wooden block of mass M = 4.1 kg as shown in the figure below. The block is attached to a string of length 1.5 m. what was the initial speed of the bullet
An object thrown straight up falls back and is caught at the sameplace it is launched from. Its time of flight is T;its maximum height is H. Neglect air resistance. What is its average velocity for the second half of the trip?
A potential difference of 81 mV exists between the inner and outer surfaces of a cell membrane. The inner surface is negative relative to the outer surface. How much work is required to eject a positive sodium ion (Na+) from the interior of the ce..
The escape velocity of a bullet from the surface of planet Y is 1823 m/s. Calculate the escape velocity from the surface of the planet X if the mass of planet X is 1.47 times that of Y,
An electric car accelerates for 8.0 s by drawing energy from its300-V battery pack. During this time,1190 C of charge passes through thebattery pack. Find the minimum horsepower rating of the car.
A light year is defined as the distance light can travel at 3 x 108 m/s in one year (365 days). How far is one light year in kilometers
A projectile is launched straight up at 141 m/s. How fast is it moving at the top of its trajectory? Suppose it is launched upward at 45 degrees above the horizontal plane. How fast is it moving at the top of its curved trajectory and what is the ..
q1. assuming she was dropped from a height of 290 and that superman can accelerate straight upward at 18.0 determine
Peter and Carter are dropping rocks into a stream from a bridge at a height of 28 m above the water below, As Meg emerges from the water below she is struck by both rocks. Calculate the speed of each rock at impact with Meg
A container X has 2 moles of gas with a pressure of 120 KPa at a constant temperature of 300K. 1) Find the volume of the gas in the container X. 2) If the temperature is now increased to 450K, what is the new pressure of the gas in the container X.
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