Physics, 10.12.2019 00:31 dgayles8761
While looking at xenon (xe) on the periodic table, a student needs to find an element with a smaller atomic mass in the same group. where should the student look?
a) directly up
b) directly down
c) directly to the left
d) directly to the right
Answers: 2
Physics, 22.06.2019 14:40
What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4Γ106m.
Answers: 2
Physics, 22.06.2019 14:40
Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?
Answers: 3
Physics, 22.06.2019 17:40
Aspring is used to stop a 50-kg package which is moving down a 20ΒΊ incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.
Answers: 1
While looking at xenon (xe) on the periodic table, a student needs to find an element with a smaller...
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