3 years ago

60 POINT!!!!!!

Physics

2 answers:

Genrish500 [490]3 years ago

8 0

You in college stop cheating

Elanso [62]3 years ago

5 0

To identify a pure liquid substance using the physical properties of solubility, density, and boiling point. The physical properties of a pure substance can be measured without changing the composition of the substance. In this experiment you will learn techniques for determining solubility, density, and boiling point.

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A block with mass m = 0.450 kg is attached to one end of an ideal spring and moves on a horizontal frictionless surface. The oth

svetoff [14.1K]

Answer:

k = 26.25 N/m

Explanation:

given,

mass of the block= 0.450

distance of the block = + 0.240

acceleration = a_x = -14.0 m/s²

velocity = v_x = + 4 m/s

spring force constant (k) = ?

we know,

x = A cos (ωt - ∅).....(1)

v = - ω A cos (ωt - ∅)....(2)

a = ω²A cos (ωt - ∅).........(3)

$\omega = \sqrt{\dfrac{k}{m}}$

now from equation (3)

$a_x = \dfrac{k}{m}x$

$k = \dfrac{m a_x}{x}$

$k = \dfrac{0.45 \times (-14)}{0.24}$

k = 26.25 N/m

hence, spring force constant is equal to k = 26.25 N/m

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4 years ago

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Galina-37 [17]

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Explanation:

Sunburn isn't caused by sweating. When one has heat stroke, they do not sweat. Heat cramps are a SYMPTOM of heat cramps, but heat exhaustion includes much more than just heat cramps.

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4 years ago

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Two identical rocks are dropped from different heights. The higher one starts out four times as high as the lower one. How much

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it is going 4 times faster.

Explanation:

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3 years ago

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