A ship is travelling due west at 100km/h. what must be the speed of a second ship heading 60⁰ west of south if it is always due south of the first ship?

Argon, neon, and xenon are examples of

What is the specific heat of wood ?

If a rock is thrown upward on the planet mars with a velocity of 10 mys, its height in meters t seconds later is given by y − 10t 2 1.86t 2 . (a) find the average velocity over the given time intervals: (i) [1, 2] (ii) [1, 1.5] (iii) [1, 1.1] (iv) [1, 1.01] (v) [1, 1.001] (b) estimate the instantaneous velocity when t − 1.