3 years ago

Answer ASAP PLSSSS :)

Physics

2 answers:

miss Akunina [59]3 years ago

4 0

Electrical energy
Then
Chemical energy

oksian1 [2.3K]3 years ago

3 0

Ce clasă ești sa văd daca te pot ajuta

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He produced the first orderly arrangement of known elements, he used patterns to predict undiscovered elements

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Janet jumps off a high diving platform with a horizontal velocity of 2.06 m/s and lands in the water 1.8 s later. How high is th

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Initial height of platform is 15.87m or 16m.

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Heptane and water do not mix, and heptane has a lower density (0.684 g/mL) than water (1.00 g/mL). A graduated cylinder contains

lakkis [162]

Given that the density of heptane is

$d_h=\frac{0.684g}{mL}$

The mass of heptane is

$m_h=31\text{ g}$

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$d_w=\frac{1g}{mL}$

The mass of water is

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The volume of heptane will be

$\begin{gathered} V_h=\frac{m_h}{d_h} \\ =\frac{31}{0.684} \\ =45.32\text{ mL} \end{gathered}$

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Thus, the volume of heptane is 45.32 mL and the volume of water is 37 mL.

The total volume of liquid in the cylinder will be

$\begin{gathered} V=V_h+V_w \\ =45.32+37 \\ =82.32\text{ mL} \end{gathered}$

The total volume of liquid in the cylinder will be 82.32 mL.

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How could you increase the kinetic energy of a wagon without increasing it's mass

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95 %

99.7 %

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$\sigma$ = 5 cm = Standard deviation

a) 156 cm and 176 cm

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From the empirical rule 95% of all values are within 2 standard deviation of the mean, so about 95% of men are between 156 cm and 176 cm.

b) 151 cm and 181 cm

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$166+5\times 3=181$

The empirical rule tells us that about 99.7% of all values are within 3 standard deviations of the mean, so about 99.7% of men are between 151 cm and 181 cm.

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