5. The diagram below shows two forces applied to a 2.0-kilogram block on a frictionless, horizontal surface.
F = 8.0 N
2.0 kg
F2 = 3.0 N
Frictionless Surface
What is the acceleration of the block?
A 4.0 m/s2 to the left
B. O 2.5 m/s2 to the right
C. O 2.5 m/s2 to the left
D. 1.5 m/s2 to the right

What occurs during a combustion reaction

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above

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?