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
My name is Ann [436]
2 years ago
13

Hydrogen bonds create unusual properties in water. What are they?

Physics
2 answers:
xeze [42]2 years ago
7 0

Answer:

High boiling and melting points: Hydrogen bonds increase the amount of energy required for phase changes to occur, thereby raising the boiling and melting points.

High specific heat: Hydrogen bonds increase the amount of energy required for molecules to increase in speed, thereby raising the specific heat.

Lower density as a solid than as a liquid: Hydrogen bonds increase the volume of the solid by holding molecules apart, thereby decreasing the density

High surface tension: Hydrogen bonds produce strong intermolecular  attractions, which increase surface tension

Explanation:

galina1969 [7]2 years ago
6 0

Answer:Liquid water is denser than Ice.

Ice float on top of liquid water.

Explanation:

Just trust me

You might be interested in
What morbid structure traditionally has thirteen steps?
tatiyna

Answer:

A gallow

Explanation:

6 0
3 years ago
The Cosmological Argument for the existence of God intellectually follows cause-and-effect back in time -- in effect asking "Whe
ankoles [38]

Answer:

First uncaused cause

Explanation:

Aristotle states that an infinite regression in the principle of causality is not possible. If the regression were infinite, then there would never be a first cause (mover), since this would need another mover to start its motion. Therefore, according to Aristotle, there must be an unmoved mover that moves other things, but is not itself moved by any prior action,

3 0
2 years ago
Can anybody help me solve this problem? Thank you so much!
ser-zykov [4K]
Please ignore my comment -- mass is not needed, here is how to solve it. pls do the math

at bottom box has only kinetic energy
ke = (1/2)mv^2
v = initial velocity
moving up until rest work done = Fs
F = kinetic fiction force = uN = umg x cos(a)
s = distance travel = h/sin(a)
h = height at top
a = slope angle
u = kinetic fiction
work = Fs = umgh x cot(a)
ke = work (use all ke to do work)
(1/2)mv^2 = umgh x cot(a)
u = (1/2)v^2 x tan (a) / gh
4 0
2 years ago
If a box has equal and opposite forces acting on it, will the box accelerate?
Neporo4naja [7]

No

Imagine your hold a cube (imagine the fists are just hands pushing and the face is the box) it will not move as the are evening each other out

6 0
2 years ago
Read 2 more answers
A 0.23 kg ladle sliding on a horizontal frictionless surface is attached to one end of a horizontal spring (k = 580 N/m) whose o
Anna71 [15]

Answer:

Explanation:

Angular speed of the motion ( SHM )

ω = √k/m

= √(580/.23 )

= 50.20 radian /s

a ) Rate of doing work

= power = force x velocity

At the equilibrium position force becomes zero so

rate of doing work is zero.

b )

If a be the amplitude

1/2 k a² = 170

a = .7655 m

kinetic energy at equilibrium = 1/ 2 m v₀²

1/ 2 m v₀² = 170

.5 x  23  v₀² = 170

v₀ = 3.84 m /s which is the maximum velocity.

Given x = .66 where rate of doing work is to be calculated.

Force at x = ω² x

= 50.20² x .66 =

= 1663.22 N

Velocity v = v₀ √( a² - x² )

= 3.84 √( .7655² - .66 )

= 3.84 x .387

= 1.486 m/s

power = force x velocity

=  1663.22 x 1.486

= 2471.55  W .

3 0
3 years ago
Other questions:
  • A cat falls from a table of height 1.3m. What is the impact speed of the cat
    7·1 answer
  • Suppose that a wind is blowing in the direction S45°E at a speed of 30 km/h. A pilot is steering a plane in the direction N60°E
    7·1 answer
  • PLEASE HELP! It’s urgent... and please show your work!!
    11·1 answer
  • Suppose you want to represent the velocity of a BALL with respect to a particular frame of reference from aboard a moving TRAIN.
    12·1 answer
  • A ball of mass m on a string of length L is attached to a pivot. The ball is released from rest while the string is parallel to
    9·1 answer
  • What can directly lead to unconformity on an exposed rock?
    10·1 answer
  • 9.00 V is applied to a wire with a resistance of 52.0 ohm. At what distance from the wire is the magnetic field 2.22x 10^-8 T?
    15·1 answer
  • Who invented the wedge simple machine and why?
    5·1 answer
  • If yall friend me ill give lots of points like this in the future
    6·1 answer
  • 20 POINTS…
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!