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
lawyer [7]
3 years ago
15

Different substances have different physical properties meaning they have properties that can be observed when a substance under

goes a
chemical change.
For example, Rust v forms when water and oxygen interact with certain metals.
Physics
2 answers:
Ann [662]3 years ago
8 0

Explanation:

physical properties are those get can measured and observed without bringing a chemical change chemical properties are those that that get observed and measured when the substance undergoes a chemical change

BaLLatris [955]3 years ago
5 0
Yea, when water interacts with oxygen the process is called oxidation
You might be interested in
Identify the frequency used by these broadcast media.<br><br> FM<br> AM<br> Television
Oliga [24]

Answer:

AM radio = 540 - 1650 KHz

FM radio = 88 to 108 MHz

Television = 54 to 216 MHz

7 0
3 years ago
Read 2 more answers
One electron collides elastically with a second electron initially at rest. After the collision, the radii of their trajectories
ch4aika [34]

Answer:

114.92749 keV

Explanation:

r = Radius of trajectory

m = Mass of electron = 9.11\times 10^{-31}\ kg

B = Magnetic field = 0.044 T

q = Charge of electron = 1.6\times 10^{-19}\ C

The centripetal force and the magnetic forces are conserved

m\frac{v^2}{r}=Bqv\\\Rightarrow v=\frac{Bqr}{m}

Velocity of first electron

v=\frac{Bqr_1}{m}\\\Rightarrow v=\frac{0.044\times 1.6\times 10^{-19}\times 0.01}{9.11\times 10^{-31}}\\\Rightarrow v_1=77277716.79473\ m/s

Velocity of second electron

v=\frac{Bqr_2}{m}\\\Rightarrow v_2=\frac{0.044\times 1.6\times 10^{-19}\times 0.024}{9.11\times 10^{-31}}\\\Rightarrow v_2=185466520.30735\ m/s

Total kinetic energy is given by

K=K_1+K_2\\\Rightarrow K=\frac{1}{2}mv_1^2+\frac{1}{2}mv_2^2\\\Rightarrow K=\frac{1}{2}m(v_1^2+v_2^2)\\\Rightarrow K=\frac{1}{2}\times 9.11\times 10^{-31}(77277716.79473^2+185466520.30735^2)\\\Rightarrow K=1.83884\times 10^{-14}\ J

Converting to eV

1\ J=\frac{1}{1.6\times 10^{-19}}\ eV

1.83884\times 10^{-14}\ J=1.83884\times 10^{-14}\times \frac{1}{1.6\times 10^{-19}}\ eV\\ =114927.49\ ev=114.92749\ keV

The energy of incident electron is 114.92749 keV

5 0
3 years ago
Soil can best be described as the
LenKa [72]
<em>Soil can be described as the C. Loose covering of weathered rocks and decaying organic matter.</em>
3 0
3 years ago
Read 2 more answers
What do the spheres in this model represent?
san4es73 [151]
I believe it’s B. Electrons
7 0
3 years ago
PLEASE HELP URGENT: Please see attachment for problem! AP physics projectile question. I'd REALLY appreciate any help.
kiruha [24]
I’m so sorry, I need more information. Good luck and I’m sorry I couldn’t help you :(
4 0
3 years ago
Other questions:
  • Imagine tying a string to a ball and twirling it around you. How is this similar to the moon orbiting Earth? In this example, wh
    12·1 answer
  • A wheel initially has an angular velocity of 18 ras/s but it is slowing ar a rate of 2.0rad/s^2 . If it stops in 3 sec it will h
    12·1 answer
  • If an alveolus with an initial volume of 3 ml of air with a total pressure of 810 mmhg decreases in volume to 1.7 ml, what would
    13·2 answers
  • Three forces act on a moving object. One force has a magnitude of 83.7 N and is directed due north. Another has a magnitude of 5
    5·1 answer
  • You toss a rock of mass mm vertically upward. Air resistance can be neglected. The rock reaches a maximum height hh above your h
    13·2 answers
  • Consult Interactive Solution 10.37 to explore a model for solving this problem. A spring is compressed by 0.0647 m and is used t
    12·1 answer
  • What is velocity and acceleration?with examples<br>plzz and my question​
    5·2 answers
  • The x-component of vector R is Rx = −28.2 units and its y-component is Ry = 19.6 units. What are its magnitude and direction? Gi
    10·1 answer
  • Sound wave A is moving through a medium that is decreasing temperature.
    14·2 answers
  • 1. The surface considered for Gauss’s law is called
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!