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Physics

2 answers:

KatRina [158]2 years ago

8 0

Collect the water sample in a glass tumbler and then put a straw in the water. Record the bending in the straw using a protractor and the angle is the answer required

Finger [1]2 years ago

4 0

you can collect water and shine a light though it and record your finings

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What is the impulse of a 3kg object accelerating from rest to 12m/s?

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To find the impulse you multiply the mass by the change in velocity (impulse=mass×Δvelocity). So in this case, 3 kg × 12 m/s ("12" because the object went from zero m/s to 12 m/s).

The answer is 36 kg m/s

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James took two pea plants, placing one in a dark closet and the other on a sunny window sill. Both are located in air-conditione

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A mass free to vibrate on a level, frictionless surface at the end of a horizontal spring is pulled 35 cm from its equilibrium p

saul85 [17]

Answer:

0.67 s

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$x = A\cos(\omega t)$

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We could use a sine function, in which case we will include a phase angle, to indicate that the oscillation began from a non-equilibrium point. We are using the cosine function for this particular case because the oscillation began from an extreme end, which is one-quarter of a single oscillation, when measured from the equilibrium point. One-quarter of an oscillation corresponds to a phase angle of 90° or $\frac{\pi}{4}$ radian.