Ahedge has been trimmed to look like a cone. the circumference of base is 2m. angle between the base of hedge and the point at top is 75°. what is the height of hedge? i am confused as to how they got 0.8131 for the base when finding radius.

What is the momentum of a 2 kg object moving at 15 meters per second

A30 kg weight lies on top of a massless piston of area a = 0.01 m2 the exterior air is at a (constant) p =1 atm and t = 27 c. the interior gas is 0.4 moles of (ideal) n2 and it has initial temperature 27.00 degrees c. 1. what is the initial pressure in the interior? a. 29.4 kpa b. 130.7 kpa c. 101.3 kpa the next three questions concern what happens when an amount of heat q is slowly added to the interior, raising the piston by 1 mm and raising the interior temperature to 27.40 c

If you place a magnet under a clear dish, and sprinkle iron fillings over it, above what part of the magnet will most of the fillings gather