A rectangle has sides 11.3cm by 6.8cm, according to significant rule its area sh
ID: 1581396 • Letter: A
Question
A rectangle has sides 11.3cm by 6.8cm, according to significant rule its area should be A) 76.84 cmA2 B) 76.8cmA2 C) 76.0 cmA2 D) 77 cmA2 The three basic units in physics class A) second, inch, and kilogram B) second, meter, and pound C) second, meter, and kilogram D) second, feet, and kilogram 1. 2. x=? 1.5 m For the two similar right triangles, we have A) (1.5m)(18m)=(x)(2m) B) ( 1.5m)(16m)-(x)(2m) 3. 16m 11.5ml 1.5m x 2m 16 m 1.5m16m C) Question 3 D) x 2m - 4. t-2.0s means A) the time goes backward for 2 seconds B) 2 seconds after we start to account the time C) 2 seconds before we start to account the time D) it is meaningless since time is always going forward (positive) 5. If we think 23d street as X axis pointing to the east, and a girl is running from 89 street to 88 street, her displacement is 88 street 89 street A)89 street-88 street = 1 block 87street B) 88 street-89 street1 block C) 1 block no matter positive or negative (continued) If this girl has velocity 6.0 m/s at 89 street, and 4.0 m/s at 88 street 10 seconds later her average acceleration is A) (6.0m/s-4.0m/s)(10s)=0.2m/s42 B) (4.0m/s-6.0m/s)/(10s)--0.2m/s/2 C) (-4.0m/s-(-60ms))(10s)=0.2m /s^2 D) (-6.0m/s-(-4.0m/s)/(10s)--0.2m/s 2 6.Explanation / Answer
A) According to significant rule, the area would be 76.8 cm2
B) Second, meter, kilogram
C) Option (A): (1.5 x 18) = (X x 2)
D) Option (C) : time 2 seconds before the start of count
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