Question 2: Agas sample composed of three particles with kinetic energies as shown. At a temperature of 80°C,
the average kinetic energy of the particles is 0.04 ).
0.02
0.05]
temperature - 80°C
(a) Calculate the kinetic energy of particle 3 at a temperature of 80°C.
energy. mxcXAT
energy of particle 3
[2]
(b) Calculate the total internal energy of the gas at 80°C.
total internal energy
(2)
1

The man fires an 80 g arrow so that it is moving at 80 m/s when it hits and embeds in a 8.0 kg block resting on ice. how far will the block slide on the ice before stopping? a 7.1 n friction force opposes its motion.

Two horizontal plates with infinite length and width are separated by a distance h in the z direction. the bottom plate is moving at a velocity u. the incompressible fluid trapped between the plates is moving in the positive x-direction with the bottom plate. align gravity with positive z. assume that the flow is fully-developed and laminar. if the systems operates at steady state and the pressure gradient in x-direction can be ignored, do the following: 1. sketch your system 2. identify the coordinate system to be used. 3. show your coordinates and origin point on the sketch. list all your assumptions. 5. apply the continuity equation to your system. nts of navier stokes equations of choice to your system 7. solve the resulting differential equation to obtain the velocity profile within the system make sure to list your boundary conditions. check units of velocity 8. describe the velocity profile you obtain using engineering terminology. sketch that on the same sketch you provided in (1). 9. obtain the equation that describes the volumetric flow rate in the system. check the units.

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration