Answer:
The scalar product of a and b is: a · b = |a||b| cosθ
Answer:
Mineral Wool
Explanation:
The mineral wool is a porous material that restricts thermal energy by trapping air in.
They'll still be magnets, but they'll never be able to touch each other where they were cut.
I hope this helps you! :-)
The correct answer is Matter is made up of atoms and has mass.
Answer:
16.63min
Explanation:
The question is about the period of the comet in its orbit.
To find the period you can use one of the Kepler's law:

T: period
G: Cavendish constant = 6.67*10^-11 Nm^2 kg^2
r: average distance = 1UA = 1.5*10^11m
M: mass of the sun = 1.99*10^30 kg
By replacing you obtain:

the comet takes around 16.63min