Physics, 09.02.2021 19:10 kayladaniels146
During the siege of the Alamo, both Mexicans and Texans fired at each other with cannons. Along the Alamo walls were 18-pound cannons. These cannons weighed an average of 1270.059 kg. They fired an 18-pound (8.1647 kg) cannonballs. If the velocity of the cannonball peaks at 248 m/s, what was the recoil velocity of the cannon?
Answers: 2
Physics, 22.06.2019 17:40
A15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25Β°c to 175Β°c. what is the specific heat capacity of iron?
Answers: 1
Physics, 22.06.2019 19:30
How many electrons in an atom could have these sets of quantum numbers? =3n=3 electronselectrons =4,β=2n=4,β=2 electronselectrons =6,β=β=β1n=6,β=2,mβ=β1
Answers: 3
Physics, 23.06.2019 00:20
Ahypothetical metal has an orthorhombic unit cell for which the a, b, and c lattice parameters are 0.413 nm, 0.665 nm, and 0.876 nm, respectively. (a) if there are 8 atoms per unit cell and the atomic packing factor is 0.536, determine the atomic radius (in nm). (b) if the density is 3.99 g/cm3, calculate the metal's atomic weight (in g/mol).
Answers: 3
Physics, 23.06.2019 00:30
What is the relationship between wavelength of light and the quantity of energy per photon?
Answers: 2
During the siege of the Alamo, both Mexicans and Texans fired at each other with cannons. Along the...
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