A2,000kg small truck is traveling east at 20.0m/s. a 1,000kg car is traveling north east at 30.0m/s. the two vehicles collide at an intersection and become entangled. - calculate the magnitude and direction of the velocity of the tangled mess just after the collision
- how much energy was lost in the collision

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y

the given statement is true.

sensory memory lasts for a fraction of seconds before the information is lost. it is the shortest -term memory and can be called as an element of memory. example: when we look at something and remember what it looks like, is just a second of observation. it degrades very quickly. it can also be considered as the process of perception rather than considering it as a memory.