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Lubov Fominskaja [6]
3 years ago
7

a block of mass m is attached to a modified atwood machine and is accelerated upward at 3a by a constant force f0. what is the w

eight of the block?
SAT
1 answer:
lora16 [44]3 years ago
7 0

Answer:

A 2:10 kg wooden block is tied to a rope and spun in a circular path of radius 1.12m. The  block obteins a maximum speed of 10m/s

Explanation:

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Soon Yi loves to bake, and she is making flaky pastry. Soon Yi starts with a layer of dough 222 millimeters (\text{mm})(mm)left
frozen [14]

Answer:

3 times

Explanation:

When the dough is folded, it increases by a constant factor. We can model the growth of the thickness using the exponential growth model

T(n)=T_0(1+r)^n

Where:

Initial thickness, T_0 = 2mm

Growth factor, r =8%=0.08

We want to find the smallest number of times Soon Yi will have to roll and fold the dough so that the resulting dough is at least 2.5mm.

i.e When T(n)\geq 2.5$ mm

2(1+0.08)^n\geq 2.5\\2(1.08)^n\geq 2.5\\$Divide both sides by 2$\\\dfrac{2(1.08)^n}{2}\geq \dfrac{2.5}{2}\\\\1.08^n\geq 1.25\\\\$Change to logarithm form\\n \geq \log_{1.08}1.25\\\\n\geq \dfrac{\log 1.25}{\log 1.08} \\\\n\geq 2.9

Therefore, the smallest number of times Soon Yi will have to roll and fold the dough so that the resulting dough is at least 2.5mm thick is 3.

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3 years ago
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In the modern model of the atom over 99. 9 of the atom is made up of.
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a(0.3−y)+1.1+2.4x= 0 (y−1.2)=−1.2(x−0.5) Consider the system of equations above, where a is a constant. For which value of a is
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