1answer.
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
Lera25 [3.4K]
3 years ago
14

The water tank for a block of flats is in the roof space above the tenth floor. The owner of a flat on the ground floor can only

open her tap a tiny amount before the water splashes wildly out of the sink. On the tenth floor, the flat owner has only a trickle of water even when his tap is completely open.
Explain these observations in terms of pressure
Physics
1 answer:
horrorfan [7]3 years ago
6 0
The Pony Express
Chapter 1
At A Nation's Crisis
The Pony Express was the first rapid transit and the first fost mail line across the continent from the Missouri River to the Pacific Coast. It was a system
by means of which messages were carried swiftly on horseback across the plains and deserts, and over the mountains of the far West It brought the
Adontic coost and the Pacific slope ten days nearer to each other.
It had a brief existence of only sixteen months and was supplanted by the transcontinental telegraph. Yet it was of the greatest importance in
binding the East and West together at a time when overland travel was slow and cumbersome, and when a great national crisis made the rapid
communication of news between these sections an imperative necessity.
The Pony Express marked the highest development in overland travel prior to the coming of the Pacific railroad, which it preceded nine years.
It, in fact, proved the feasibility of a transcontinental road and demonstrated that such a line could be built and operated continuously the year
around-a feat that had always been regarded as impossible.
The operation of the Pony Express was a supreme achievement of physical endurance on the part of man and his ever faithful companion, the
horse. The history of this organization should be a lasting monument to the physical sacrifice of man and beast in an effort to accomplish
something worthwhile. Its history should be an enduring tribute to American courage and American organizing genius.
Read this line from the Pony Express excerpt
It hod a brief existence of only sixteen months and was supplanted by the transcontinental telegraph.
Based on the corres, what does the word "supplanted" mean? (5 points)
Defeated
Joined
Replaced
Os
Oo
Unearthed
You might be interested in
A spring does 80 J of work launching a 1.85 kg rock into the air. Ignoring air resistance, how high will the rock go?
Svetlanka [38]

h=80/(1.85*9.8)=4.4 m

3 0
3 years ago
A plane electromagnetic wave travels northward. At one instant, its electric field has a magnitude of 9.6 V/m and points eastwar
lara31 [8.8K]

Answer:

The values is  B  = 3.2 *10^{-8} \  T

The  direction is out of the plane

Explanation:

From the question we are told that

  The  magnitude of the electric field is  E  =  9.6 \  V/m

 

The  magnitude of the magnetic field is mathematically represented as

       B  = \frac{E}{c}

where c is the speed of light with value

      B  = \frac{ 9.6}{3.0 *10^{8}}

     B  = 3.2 *10^{-8} \  T

Given that the direction off the electromagnetic wave( c ) is  northward(y-plane ) and  the electric field(E) is eastward(x-plane ) then the magnetic field will be acting in the out of the page  (z-plane  )

     

3 0
3 years ago
A group of stars connected by lines is circled and labeled Saturn.
likoan [24]
Answer: scorpion I think
3 0
2 years ago
Science is the process of asking scientific questions about which of the following?
Eva8 [605]

the answer to your question would be D.

4 0
3 years ago
Read 2 more answers
Two 10-N weights are hanging from two Springs A and B. Spring A has a greater spring constant and therefore will ____. a. have a
arsen [322]
The spring should have a greater displacement .
Greater spring constant = the more difficult it is to stretch a spring , due to stiffness.
8 0
2 years ago
Other questions:
  • Pretend a system is having Transverse waves. And those transverse waves on a string have wave speed 8.00 m/s amplitude 0.0700m a
    15·1 answer
  • The objective lens in a microscope with a 17.0 cm long tube has a magnification of -50.0 and the eyepiece has a magnification of
    15·1 answer
  • A uniform thin rod of length 0.60 m and mass 3.5 kg can rotate in a horizontal plane about a vertical axis through its center. T
    12·1 answer
  • The source of the earth’s magnetic field is found in the _____.
    8·2 answers
  • An elevator of massmis initially at rest onthe first floor of a building. It moves upward,and passes the second and third floors
    6·1 answer
  • Ten narrow slits are equally spaced 2.00 mm apart and illuminated with green light of wavelength 511 nm. The width of bright fri
    6·1 answer
  • Explain to your friend, who is willing to accept that light moves at the same speed in any frame, why clocks on a passing train
    7·1 answer
  • Compute the electric charge on the surface which is the portion of the cone z = 3x2 + 3y2 in the first octant that lies between
    6·1 answer
  • One of the most common diseases a pet gets intestate with, is a worm infection in the stomach. 'Tape worm' is one such worm whic
    8·1 answer
  • Identify the amplitude of the wave using the picture below.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!