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There are two stable isotopes of the element Lithium. One of them has three neutrons and the other has four. All other isotopes are radioactive withshort half lives. Using the periodic table in the textbook, find the listed mass of lithium, inamu. Then, using this value, calculate the percentage of the two stable isotopes presentin natural lithium.
At 28.0 m below the surface of the sea (density = 1 025 kg/m3), where the temperature is 5.00°C, obtain the volume of the bubble just before it breaks the surface
A particle whose mass is 6.0 grams and whose charge is 5 nC is released from rest when it is 20 cm from a second particle of charge 8 C. Find the magnitude of the particle's initial acceleration
A friend in a spaceship travels past you at a high speed. Hetells you that his ship is 21 m longand that the identical ship you are sitting in is 15 m long. According to your observations, how long is your ship
You have a concave lens whose focal length has an absolute value of 8 cm and several convex lenses with f=5.0 cm, 12 cm, 15 cm, and 20 cm. determine the focal length of the concave lens
Light of wavelength 563 nm incident on a pair of slits produces an interference pattern on a distant screen in which the separation between adjacent bright fringes at the center of the pattern is 0.589 cm
An ideal gas occupies a volume of 1.8 cm3 at 20°C and atmosphericpressure. Determine the number of molecules of gas in the container
For a temperature increase of T1, a certain amount of an ideal gas requires 25 J when heated at constant volume and 53 J when heated at constant pressure
In a pool game, the cue ball, which has an initial speed of5.0m/s, make an elastic collision with the eight ball, which is initially at rest. Find the direction of motion of the cue ball after the collision
An electromagnetic wave in a vacuum has a magnetic field with a magnitude of 1.4 10-6 T. What is the intensity S of the wave
A child's toy consists of a piece of plastic attached to a spring in the figure below. The spring is compressed against the floor a distance of 2.00 cm, estimate the force constant of the spring
q1. a 28 kg loudspeaker is suspended 3.0 m below the ceiling by two cables that are each 64 degrees from vertical. what
As a positron moves through a region of space, its speed increases from 2.80 106 m/s to 8.00 106 m/s. Across what potential difference did the positron travel
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