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Of the atoms (a) scandium, Sc; (b) calcium, Ca; and (c) lithium, Li, one tends to lose three electrons, another tends to lose two electrons, and another tends to lose one electron. Rank these atoms in order of the number of electrons they tend to lose, from fewest to most.
Rank the physical and chemical changes in order of decreasing of the amount of energy released: (a) the condensation of rain in a thunderstorm, (b) the burning of a gallon of gasoline in a car engine, (c) the explosion of a firecracker. What is the common name for oxygen oxide? How many carbon atoms are in a 4-carat pure diamond that has a mass of 0.80 g .
A hydrogen atom that is initially at rest absorbs a photon with energy of 49.4 eV. What is the momentum of the atom after it absorbs the photon?
The magnitude of the force exerted by a spring is given by F = kx where x is the amount of stretching/compressing of the spring. What must be the units associated with k expressed in terms of fundamental SI units?
An ideal gas in a container of volume 100 cm3 at 20°C has a pressure of 100 N/m2. Evaluate the number of gas molecules in the container
Two large parallel metal plates are uniformly and oppositely charged and the electric field between them is 7.6 x 10^6 N/C. What is the charge density on each plate
The speed of a particle in a particle accelerator goes from .50000c to .99950c. Determine the magnitude of final relativistic momentum
two girls go fishing in row boat. joy whose mass is 65kg jumps straight off the front of the boat with speed of 2.00m/s relative to boat, what is its velocity after both girls jump
A 2.05 cm tall object is placed 30.0 cm to the left of a converginglens with a focal length f1 = 21.0 cm. How tall is thefinal image of the object
A diverging lens has a focal length -0.16m. An object is placed in the distance 0.1m from the lens on the left side. What is the image magnification?
a long horizontal wire carries a current of it 49.1 a. a second wire i made of 2.40 mm diameter copper wire and
what is the force acting through (F) required to hold the lever in static equilibrium? Indicate clearly the Force and resistance vectors due to the weight, the force moment arm and the resistance moment arm, as well as the axis. Note that the weig..
question1a cardinal richmondena cardinalis of mass 4.00times10-2kg and baseball of mass 0.143kg have the same kinetic
A sphere rebounds as shown after striking an inclined plane with a vertical velocity v0 of magnitude v0 = 5 m/s. Knowing that a =30° and e = 0.8 between the sphere and the plane, determine the height h reached by the sphere.
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