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3 years ago

(b) Complete the sentence about longitudinal

Physics

1 answer:

Kay [80]3 years ago

7 0

Answer:

see below

Explanation:

b ) the vibrations of the air particles are parallel to the direction of energy transfer.

c) use formula

speed = wavelength x frequency

speed = 0.85 x 400

speed = 340 m/s

hope you get it

please mark

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allochka39001 [22]

(a) When immersed in the liquid, the solid displaces an amount of liquid weighing 64 N - 48 N = 16 N, and this is the same as the magnitude of the buoyant force/upthrust.

(b) Archimedes' principle says the solid has a volume equal to that of the displaced liquid. At a density of 0.8 g/cm³ = 0.0008 kg/cm³, a 16-N amount of this liquid has a volume of

(16 N) / g × (1/0.0008 cm³/kg) = 2040.82 cm³

(c) Density is mass per unit volume, so you get the solid's density by dividing its mass (weight/g) by the volume in (b):

((64 N) / g) / (2040.82 cm³) ≈ 0.0032 kg/cm³ ≈ 3.2 g/cm³

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2 years ago

when drawing a scatter diagram, along which axis is the explanatory variable placed? along which axis is the response variable p

eimsori [14]

The explanatory variable is placed on the x-axis and the response variable is placed on the y-axis.

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3 years ago

A woman pushes a 3.2kg textbook on a table as she walks forward 3.5 meters. How much work does the vertical component of the for

Effectus [21]

Answer:

The done by the vertical component of force is zero.

Explanation:

Given data,

The mass of the textbook the women pushes horizontally, m = 3.2 kg

The displacement of the textbook, S = 3.5 m

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Therefore, the horizontal component of force is maximum and the vertical component is zero.

If F is the force applied by the women, then the horizontal and vertical component of the force is,

$F_{x}=F Cos\theta$

$F_{y}=F Sin\theta$

Since the force is acting along with the horizontal x component, the vertical component of the force is zero.

Hence, the done by the vertical component of force is zero.

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3 years ago

Compared to its weight on Earth, a 10-kg object on the moon will weigh Question 9 options: less. the same amount. more.

Nostrana [21]

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3 years ago

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An experiment begins with crystalline salt at the bottom of an otherwise empty glass. First, students add water to the glass. Th

vfiekz [6]

Answer:

Explanation:

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3 years ago