answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
S_A_V [24]
2 years ago
11

A conical container of radius 10 ft and height 40 ft is filled to a height of 36 ft of a liquid weighing 60.6 lb divided by ft c

ubed. How much work will it take to pump the contents to the​ rim? How much work will it take to pump the liquid to a level of 4 ft above the​ cone's rim?
Physics
1 answer:
pshichka [43]2 years ago
8 0

Explanation:

The centre of mass of a right cone of height, H lies on the axis of symmetry at a distance of H/4 from the base

= 3H/4 from top.

D = 5 + 36/4

= 14 ft from the upper rim

Mass of liquid in the cone = volume × density (ρ)

= ⅓.π.r².h.ρ

= ⅓ × 36 × [10 × (36/40)]² × π × 60.6

= 18505 lbs.

where,

r = radius of the liquid surface.

Workdone required to lift this to the rim

= force * distance

= 18505 * 4.45 × 14

= 1152861.5 N.ft.

B.

4 ft above the rim needs an extra 1152861.5 × 4

= 4611446 N.ft.

Total workdone = 1152861.5 + 4611446

= 5764307.5 J.

You might be interested in
Match each label to the boundary it describes. convergent boundary new crust forms transform boundary crust submerges into the m
Paraphin [41]

The answers would be:

CONVERGENT boundary - Crust submerges into the mantle

TRANSFORM boundary - neither forms nor submerges

DIVERGENT boundary - new crust forms

If you'd like to know more about the different boundaries, read on:

Convergent boundaries occur when two plates move TOWARDS each other. The event where crust submerges into the mantle is called <em><u>subduction</u></em> and this occurs when an oceanic plate and a continental plate collide. The oceanic plate is more dense and thinner than the continental plate, so it slides under it.

Transform boundaries occur when two plates slide against each other. They move slide side by side, so nothing is formed nor do they go under each other. Although, this type of boundaries create strong earthquakes.

Lastly, divergent boundaries occur when two plates move apart. The separation creates a way for magma to come up. New crust is formed when the magma that seeps out is cooled by its cooler surroundings. This is observed in the mid oceanic ridge.

7 0
2 years ago
Read 2 more answers
A block spring system oscillates on a frictionless surface with an amplitude of 10\text{ cm}10 cm and has an energy of 2.5 \text
antoniya [11.8K]

Answer:

The energy of the system is 15 J.

Explanation:

Given that,

Energy E = 2.5 J

Amplitude = 10 cm

We need to calculate the spring constant

Using formula of mechanical energy of the system

E=\dfrac{1}{2}kA^2

Put the value into the formula

2.5=\dfrac{1}{2}k\times(10\times10^{-2})^2

k=\dfrac{2.5\times2}{(10\times10^{-2})^2}

k=500\ N/m

If the block is replaced by a block with twice the mass of the original block

Amplitude = 6 cm

We need to calculate the energy

Using formula of mechanical energy

E=\dfrac{1}{2}kA^2

Put the value into the formula

E=\dfrac{1}{2}\times500\times(6\times10^{-2})

E=15\ J

Hence, The energy of the system is 15 J.

8 0
2 years ago
Help me plz!
olga nikolaevna [1]
As he lifts the sack to his chest from the floor
5 0
2 years ago
Read 2 more answers
A small glass bead charged to 8.0 nC is in the plane that bisects a thin, uniformly charged, 10-cm long glass rod and is 4.0 cm
Assoli18 [71]

Answer:

71nC is the total charge of the rod

Explanation:

See attached file

8 0
2 years ago
Identify whether the features and functions belong to the Hubble Space Telescope or the ALMA radio telescope. 1.installed on lan
tester [92]
Hublle Space Telescope
- Orbits around  Earth.
- Receive light before it enters Earth's Atmosphere. 
- Get information about stars before they are born.

Alma Radio Telescope
- Installed on land.
- Receive light after it passes through Earth's Atmosphere.
- Get information about stars after they are born. 

5 0
2 years ago
Read 2 more answers
Other questions:
  • All forces on the bullets cancel so that the net force on a bullet is zero, which means the bullet has zero acceleration and is
    6·1 answer
  • The A-string (440 HzHz) on a piano is 38.9 cmcm long and is clamped tightly at both ends. If the string tension is 667N, what's
    7·2 answers
  • Snowboarder Jump—Energy and Momentum
    9·1 answer
  • An ideal gas trapped inside a thermally isolated cylinder expands slowly by pushing back against a piston. The temperature of th
    11·1 answer
  • Two sinusoidal waves travel along the same string. They have the same wavelength and frequency. Their amplitudes are ym1 = 2.5 m
    5·1 answer
  • Listed in the Item Bank are key terms and expressions, each of which is associated with one of the columns. Some terms may displ
    15·2 answers
  • Una manguera de agua de 1.3 cm de diametro es utilizada para llenar una cubeta de 24 Litros. Si la cubeta se llena en 48 s. A) ¿
    14·1 answer
  • A group of students prepare for a robotic competition and build a robot that can launch large spheres of mass M in the horizonta
    9·1 answer
  • . A horizontal steel spring has a spring constant of 40.0 N/m. What force must be applied to the spring in order to compress it
    13·1 answer
  • Use Newton's laws of motion to explain why it is important that baseballs and softballs each have a small acceptable range of ma
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!