Three liquids are at temperatures of 11°C,
19°C, and 29°C, respectively. Equal masses of
the first two liquids are mixed, and the equi-
librium temperature is 14°C. Equal masses of
the second and third are then mixed, and the
equilibrium temperature is 24.5°C.
Find the equilibrium temperature when
equal masses of the first and third are mixed.
Answer in units of °C.

You are driving to the grocery store at 20 m/s. you are 110m from an intersection when the traffic light turns red. assume that your reaction time is 0.50s and that your car brakes with constant acceleration. how far are you from the intersection when you begin to apply the brakes? what acceleration will bring you to rest right at the intersection? how long does it take you to stop after the light changes? the known values: vi=20m/s xi=110m t=.50s vf=0m/s xf=0m a=?

An object with a mass of 1.5 kg changes its velocity from + 15 m/s to +22 m/s during a time interval of 3.5 seconds. what impulse was delivered to the objects?

3. which is not a primary color of light? blue red green yellow