f 0.0124 J. The
object collides with a horizontal spring and compresses it by 0.800 m before it is brought to rest momentarily. What
is the spring constant of this spring? When the spring was compressed to 0.800 m, is the work done on the mass
m1 by the spring positive, zero, or negative?
during primary recovery. This problem explores some aspects of this behavior.
Consider the expansion of methane from 300 bars to 50 bars at a constant temperature of 40 C (313 K).
Methane obeys the following equation of state
where C = 31 cm3/mol, D = -693cm3K/mole, and R = 83.14bar cm3/mole K. Note that the units of
energy are bar-cm3/mole in this problem. Report your answer in bar-cm3/mole
(a) What is the change in enthalpy during the expansion
(b) What is the change in internal energy?
(c) What is the heat removed?
(d) How much work does the system do during the expansion?
eson (mass of 10.58 GeV) upon collision? You may assume they each have the same speed(half of the necessary energy to make a single meson) and express it as a percentage of c, or simply as β. Be sure to include a value of gamma in your work in the case that your calculator doesn’t have the precision to give a β≠1.
tal force (F = 10 N) is applied to the block between A and B as shown in the figure. The kinetic energy of the block at A is 10 J and at B it is 20 J. How much work is done on the block by the force of friction between A and B?