In lecture, we saw a video of researcher janet werker studying the capacity of infants to detect speech sounds. she trained them to turn their head at a sound change (such as "ba" to "pa"), then exposed them to speech sounds that do not exist in english. what were her findings?

What is the earliest point in the universe that we can observe? why can’t we see back further than this?

6–55 refrigerant-134a enters the condenser of a residential heat pump at 800 kpa and 358c at a rate of 0.018 kg/s and leaves at 800 kpa as a saturated liquid. if the compressor consumes 1.2 kw of power, determine (a) the cop of the heat pump and (b) the rate of heat absorption from the outside air.

What are atoms of the same element with varying number of neutrons