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3 years ago

Need help with this!!! 15 points!!!!

Physics

1 answer:

irinina [24]3 years ago

5 0

Answer:

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Explanation:

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A conical container of radius 6 ft and height 24 ft is filled to a height of 19 ft of a liquid weighing 64.4 lb divided by ft cu

kobusy [5.1K]

Answer:

Part (i) work required to pump the contents to the rim is 281,913.733 lb.ft

Part (ii) work required to pump the liquid to a level of 5ft above the cone's rim is 426,484.878 lb.ft

Explanation:

The center of mass of a uniform solid right circular cone of height h lies on the axis of symmetry at a distance of h/4 from the base and 3h/4 from the top.

Center mass of the liquid Z = (24-19)ft + 19/4 = 5ft + 4.75ft = 9.75 ft

Mass of liquid in the cone = volume × density (ρ) = ¹/₃.π.r².h.ρ

where;

r is the radius of the liquid surface = [6*(19/24)]ft = 4.75ft

ρ is the density of liquid = 64.4 lb/ft³

h is the height of the liquid = 19 ft

Mass of liquid in the cone = ¹/₃ × π × (4.75)² × 19 × 64.4 = 28,914.229 lbs

Part (i) work required to pump the contents to the rim

Work required = 28,914.229 lbs × 9.75 ft = 281,913.733 lb.ft

Part (ii) work required to pump the liquid to a level of 5 ft above the cone's rim

Extra work required = 28,914.229 lb × 5ft = 144571.145 lb.ft

Total work required = (281,913.733 + 144571.145) lb.ft

= 426,484.878 lb.ft

5 0

3 years ago

Your lab instructor has asked you to measure a spring constant using a dynamic methodâ€”letting it oscillateâ€”rather than a sta

yuradex [85]

Answer:

k = 6,547 N / m

Explanation:

This laboratory experiment is a simple harmonic motion experiment, where the angular velocity of the oscillation is

w = √ (k / m)

angular velocity and rel period are related

w = 2π / T

substitution

T = 2π √(m / K)

in Experimental measurements give us the following data

m (g) A (cm) t (s) T (s)

100 6.5 7.8 0.78

150 5.5 9.8 0.98

200 6.0 10.9 1.09

250 3.5 12.4 1.24

we look for the period that is the time it takes to give a series of oscillations, the results are in the last column

T = t / 10

To find the spring constant we linearize the equation

T² = (4π²/K) m

therefore we see that if we make a graph of T² against the mass, we obtain a line, whose slope is

m ’= 4π² / k

where m’ is the slope

k = 4π² / m'

the equation of the line of the attached graph is

T² = 0.00603 m + 0.0183

therefore the slope

m ’= 0.00603 s²/g

we calculate

k = 4 π² / 0.00603

k = 6547 g / s²

we reduce the mass to the SI system

k = 6547 g / s² (1kg / 1000 g)

k = 6,547 kg / s² =

k = 6,547 N / m

let's reduce the uniqueness

[N / m] = [(kg m / s²) m] = [kg / s²]

7 0

3 years ago

A cup has a mass of 0.0650 kg and a

Roman55 [17]

Answer: 0.185

Explanation:

Trust bro

5 0

2 years ago

How is light being described?

Slav-nsk [51]

Light is described as both wave as well particle because light behave as wave in phenomenon like diffraction, interference, refraction, Doppler effect, etc whereas it behave as a particle in phenomenon like photoelectric effect, etc. Hope this helps.

7 0

3 years ago

I'm literally so dumb and about to fail my ap physics exam please help

Goshia [24]

Ok bro, so what’s the question lol

5 0

3 years ago