Which of the following lines is perpendicular to the equation given below?
- 9x = 15 - 3 y
A. 6r + 2y - 8 = 0
B. - 3y = -3
C. 12r - 24 = 4
D. 6v = 42 - 27

HELP

Amass has an acceleration of 10- 2t. what is its velocity and displacement if it started at x- 4m and the initial velocity was 8m/s? at what time does it have 0 velocity? graph all graphs.

True or false: the revolution of the earth creates day and night as it rotates around the sun

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