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navik [9.2K]
3 years ago
9

Please give me the answer of this question ​

Physics
1 answer:
Zolol [24]3 years ago
8 0
Da answer to your question is is is is is is is is is is is is

C
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Pin p is constrained to move along the curve defined by the lemniscate r=(4sin2θ)ft.if the slotted arm oa rotates counterclockwi
ruslelena [56]

position of the peg is given by the equation

r = 4 sin2\theta

now the rate of change in position is given as

v = \frac{dr}{dt}

v = \frac{d}{dt}(4 sin2\theta)

v = 8cos2\theta*\frac{d\theta}{dt}

v = 8 cos2\theta*\omega

given that

\omega = 1 rad/s

\theta = 59 degree

now we have

v = 8*cos(2*59)* 1 = -3.76 m/s

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3 years ago
A flask that weighs 345.8 g is filled with 225 mL of carbon tetrachloride.
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Answer:

1.59 g/mL

Explanation:

Mass of CCl₄ = mass of flask and CCl₄ − mass of empty flask

m = 703.55 g − 345.8 g

m = 357.75 g

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d = 357.75 g / 225 mL

d = 1.59 g/mL

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3 years ago
Why does Farm Bureau and other advocacy organization oppose any mandated labeling of biotech crops?
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I’m. Nog sure

Explanation:

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What is the inverse square law and how does it relate to gravity?
Nesterboy [21]

Answer:

Inverse Square Law Newton proposed the Inverse Square Law. The effect of gravity (and also on forces such as sunlight) works like this. If say we have a half-mass Earth, it would produce a gravity of not half but a quarter (the square of 2).

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