3 years ago

Moving a ball up a hill

Physics

2 answers:

Ugo [173]3 years ago

4 0

Answer:

C increase in potential energy

hammer [34]3 years ago

4 0

The answer would be C

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Which kind of air front forms when a warm air mass meets the area of a cooler air mass?

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3 years ago

7. A 50 kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she is over the bar is 1.0 m/s. Neglect air resist

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The plug has a diameter of 30 mm and fits within a rigid sleeve having an inner diameter of 32 mm. Both the plug and the sleeve

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Answer:

P=740 KPa

Δ=7.4 mm

Explanation:

Given that

Diameter of plunger,d=30 mm

Diameter of sleeve ,D=32 mm

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n=0.45

As we know that

Lateral strain

$\varepsilon _t=\dfrac{D-d}{d}$

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We know that

$n=-\dfrac{\epsilon _t}{\varepsilon _{long}}$

$\varepsilon _{long}=-\dfrac{\epsilon _t}{n}$

$\varepsilon _{long}=-\dfrac{0.0667}{0.45}$

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So the axial pressure

$P=E\times \varepsilon _{long}$

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The movement in the sleeve

$\Delta =\varepsilon _{long}\times L$

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3 years ago

if you were to draw a 3rd harmonic of a tube open at both ends, what would you draw at the ends of the tube?

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A 3rd harmonic of a tube open at both ends will have displacement antinodes at both ends.

In a tube of length L with two open ends, the longest standing wave has displacement antinodes (pressure nodes) at both ends. The fundamental or first harmonic is what it is known as. The second harmonic is the longest standing wave in a tube of length L with two open ends.

Learn more about harmonics here brainly.com/question/17315536

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2 years ago