Answer:
the preview of the scientific method
In drawing, when the quality of a single line changes from thick to thin, it is referred to as calligraphic. Calligraphy is an art that is associated with writing. It involves designing and executing a lettering using a broad tip instrument or a brush. Pens that are used for this uses nibs which can be pointed, round or flat.
Answer:
Explanation:
mass of backpack, m = 8.1 kg
weight of climber, W = 656 N
height raised, h = 9.4 m
time, t = 28.2 min = 28.2 x 60 = 1692 second
weight of backpack, w = m x g = 8.1 x 9.8 = 79.38 N
Work done by the climber on the backpack = mg x h = 79.38 x 9.4 = 746.17 J
Wok done in lifting herself + backpack = (W + w) x h
= (656 + 79.38) x 9.4 = 6912.57 J
Power developed by the climber,P = Total work / time
P = 6912.57 / 1692 = 4.09 W
Runner A is faster than runner B
Runner B has a head start