Two forces, of magnitudes 50 N and 80 N. act at a point on a Cartesian plane in the direcions shown in the sketch below.

2.1
Give the correct term for the following description:
A single vector having the same effect as two or more vectors together
2.2
Calculate the
22.1
Magnitude of the vertical component of the 50 N
2
2.2.2
Magnitude of the resultant (net) force
2.2.3
Direction of the resultant (net) force
2.​

Which of the following statements are true of solids? a.the particles do not vibrate. b.the particles are in a fixed location. c.they have strong intermolecular forces between the atoms or molecules. d.the particles have less kinetic energy than those of liquids or gases.

Water at room temperature of 20.0°c is poured into an aluminum cylinder which has graduation markings etched on the inside. the reading in the graduations is 300.0 cc. the cylinder with the water in it is then immersed in a constant temperature bath at a temperature of 100°c. what is the reading for the level of water on the graduations of the cylinder after the water and the cylinder reach thermal equilibrium with the bath? the volume coefficient of expansion of water is 2.07 x 10^-4 k-1, and the linear coefficient of expansion of aluminum is 23.0 x 10^-6 k-1. a) 305.0 cc b) 304.0 cc c) 303.5 cc d) 303.3 cc e) 304.5 cc

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer