Below are the numerical values of velocity at specific times. a) using the numerical method calculate the average acceleration during the time between t-2 seconds and t-3 seconds: . 2, b) calculate the position atts3 sec. you should assume that x-3m when t 0 [i. e., m] 610m numerical data v(0 sec) -4.0 m/s v(1 sec) -2.0 m/s v(2 sec) 1.0 m/s v(3 sec) 5.0 m/s v(4 sec) 10.0 m/s

The seven sisters, seven stars located more than 400 light-years away in the taurus constellation can be seen here with venus and another constellation, orion. the seven stars stay grouped together but seem to move, like the planet venus. why do stars seem to move like planets in the night sky?

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.

A200-n force is applied to the foot-operated air pump. the return spring s exerts a 2.6-n·m moment on member oba for this position. determine the corresponding compression force c in the cylinder bd. if the diameter of the piston in the cylinder is 40 mm, estimate the air pressure generated for these conditions. state any assumptions. enter a positive number for the compression force c.