1
At what value of y is
y℃ = y℉
Answer: y = -40
A particle moves along a straight line such that its displacement s after time t is given by s = 2t3.
Find its velocity at t = 2 s.
Answer: 24 m/s
A boy walks 5 m due north then 12 m due west. Find its displacement from his start position.
Answer: 13 m
Which colour has the second to the shortest wavelength in the spectrum of white light?
Answer: indigo
Kaakaki is an example of ______ instrument
Answer: Wind