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
agasfer [191]
2 years ago
5

Can anybody helppp me with this

Physics
2 answers:
GREYUIT [131]2 years ago
8 0

Answer:

Iron Rusting

6th grade stuff or 5th i think

Explanation:

KonstantinChe [14]2 years ago
4 0

Answer:

Salt dissolving

Explanation:

Dis solving salt in water doesn't change it's chemical composition

You might be interested in
Which action best demonstrates the transformation of mechanical energy to heat energy and sound energy?
MrMuchimi

Answer:

striking a hammer on a nail

7 0
3 years ago
In an internal combustion engine, heat flow into a gas causes it to ......
ivann1987 [24]
<span>In an internal combustion engine, heat flow into a gas causes it to expand.
The application of direct force to specific parts of the engine will produce </span>expansion of the high-temperature<span> and high-</span>pressure<span> gases. Which will transform the chemical energy from the fuel (such as gasoline or oi) into mechanical energy.</span>
5 0
3 years ago
Which type of galaxy often contains the largest relative amount of gas and dust?
Vikki [24]
 the answer is spiral galaxies 
4 0
3 years ago
Why does a plastic comb attract small bits of paper after rubbing with wool?
navik [9.2K]
Static electricity. Like the balloon against hair
5 0
3 years ago
In an experiment, a large number of electrons are fired at a sample of neutral hydrogen atoms and observations are made of how t
kakasveta [241]

Answer:

N = 1036 times

Explanation:

The radial probability density of the hydrogen ground state is given by:

p(r) = \frac{4r^{2} }{a_{0} ^{3} } e^{\frac{-2r}{a_{0} } }

p(\frac{a_{0} }{2} ) = \frac{4(\frac{a_{0} }{2} )^{2} }{a_{0} ^{3} } e^{\frac{-2(\frac{a_{0} }{2} )}{a_{0} } }

p(2a_{0} ) = \frac{4(2a_{0}) ^{2} }{a_{0} ^{3} } e^{\frac{-4a_{0} }{a_{0} } }

N = 1300\frac{p(2a_{0}) }{p(\frac{a_{0} }{2} )}

N = 1300\frac{(2a_{0}) ^{2}e^{\frac{-4a_{0} }{a_{0} } }  }{(\frac{a_{0} }{2} )^{2} e^{\frac{-a_{0} }{a_{0} } }}

N = 1300(16) e^{-3}

N = 1035.57

N = 1036 times

6 0
3 years ago
Other questions:
  • Selective serotonin reuptake inhibitors began appearing in the
    13·1 answer
  • In order to be sure a grinder used in production is operating properly, what feature of the grinder should be checked daily?
    9·1 answer
  • 18. What do you call a change in state from a liquid to a gas?
    13·2 answers
  • Electric field lines always begin at _______ charges (or at infinity) and end at _______ charges (or at infinity). One could als
    5·1 answer
  • A force acting on an object does no work if
    6·2 answers
  • What are the balanced forces for someone in a parachute? A. Gravity and Earth B. Gravity and air resistance C. Gravity and centr
    9·2 answers
  • A solid ball of inertia m rolls without slipping down a ramp that makes an angle θ with the horizontal.
    11·1 answer
  • Two boats are operating in the same general area. who is responsible for avoiding a collision?
    13·2 answers
  • If a golf ball is dropped from the thirteenth floor of a building, ignoring air resistance, after falling for 7.00 seconds the s
    13·1 answer
  • What is the speed of a wave with a frequency of 100 hz and a wave length of .5 m?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!