According to Newton’s first law, when pushing a penny across a table, the penny will slide to the edge of the table and fall off. However, if the force is not strong enough, the penny will stop on the table. The force that stops the penny on the table is: a. Air
b. Friction
c. The force of the table
d. Gravity

Which feature indicates that mars resides in the inner region of the solar system

In automobile steering wheel is shown what is the ideal mechanical advantage blank? if the ama is eight what is the efficiency of the steering wheel?

Aparticle of mass m is placed in a one-dimensional box of length l. the box is so small that the particle’s motion is relativistic, so that e p2/2m is not valid. (a) derive an expression for the energy levels of the particle using the relativistic energy–momentum relation and the quantization of momentum that derives from connement. (b) if the particle is an electron in a box of length l 1.00 1012 m, nd its lowest possible kinetic energy. by what percent is the nonrelativistic formula for the energy in error?