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hi,
you have then : 2100 * 1.045 ^n = 47 200
1.045^n = 47200 /2100
1.045^n = 472/21
n = ln ( 472/21 ) / ln ( 1.045)
n ≈71 years
let's check : 2100 *1.045^70 = 45746,68 and 2100 *1.045^71 = 47805.28
The answer is 19*2 because u have to divide <span />
Answer:
1. 20.505N
2.8.876N
3. -13.686N
Step-by-step explanation:
1. xcos75 + xsin75 = 26N
x(cos75+sin75) = 26; x = 26/(cos75+sin75)
x = 26/1.2247 = 21.229
vertical component is 21.229 sin75 = 20.505 N
2. xcos30 + xsin30 = 14N
x(cos30 + sin30) = 14; x = 14/1.366 = 10.249
horizontal component is 10.249 x cos30 = 8.876N
3. net force on the vertical direction.
xcos37 + xsin37 = 24
x(cos37+sin37) = 24; x = 24/(cos37+sin37) = 24/1.400 = 17.137
verical component is 17.137 x sin37 =10.314
we are given that the box excert a force of 22N downwards, so the net vertical component is 10.314 - 24 = -13.686N
Answer:
Sudden pressure or pain in the chest
Step-by-step explanation:
The main symptom of the indication that a person is having a heart attack is that the person feels discomfort or heaviness in the center of the chest. Some other symptoms can be unusual fatigue, shortness of breath, nausea, cold sweats, or indigestion.
Hence, the correct option is (b) "sudden pressure or pain in the chest".