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
Ksenya-84 [330]
3 years ago
7

PLZZZ HELP ME ASAP

Chemistry
1 answer:
Vesna [10]3 years ago
7 0

de Broglie's wave equation describes that particles have wave properties. The equation is  

   λ = h/mv

Where λ  is the wave length of the particle (m), h is the Planck's constant (6.62607 x 10⁻³⁴J s), m is the mass of a particle (kg) and v is the velocity (m/s).

λ = ?

h =  6.62607 x 10⁻³⁴ J s

m =200 g = 0.2 kg

v = 20 m/s

By substitution,

   λ  = 6.62607 x 10⁻³⁴ J s / (0.2 kg x 20 m/s)

   λ  = 1.66 x 10⁻³⁴ m

Hence, the wavelength of the 200 g ball 1.66 x 10⁻³⁴ m.

You might be interested in
Rank the boiling points of the following molecules from highest to lowest. butanone diethyl ether butane and butanol.
Gekata [30.6K]

Answer:

From highest to lowest:

butanol: 117.7 degree Celsius

butanone: 79.64 degree Celsius

diethyl ether: 34.6 degree Celsius

n-butane: -0.4 degree Celsius

7 0
2 years ago
What kingdom do fungi belong
miv72 [106K]
They’re Eukaryotic/ the Eukarya kingdom
Hope this helps :)
8 0
3 years ago
A voltaic cell consists of a nickel electrode in a solution containing Ni2+ ions, and a copper electrode in a solution containin
Marysya12 [62]
First, we write the half equations for the reduction of the chemical species present:

Cu⁺² + 2e → Cu; E° = 0.34 V
Ni⁺² + 2e → Ni; E° = - 0.23 V

In order to determine the potential of the cell, we find the difference between the two values. For this:

E(cell) = 0.34 - (-0.23)
E(cell) = 0.57 V

The second option is correct. (The difference in values is due to different values in literature, and it is negligible)
4 0
3 years ago
In the following diagram the counter clockwise torque is?
Alina [70]
80Nm I'm pretty sure this is the answer if I'm wrong I'm sorry but I'm positive it the answer
4 0
3 years ago
What affects the nervous system? and how does it affect the nervous system?
vazorg [7]
When you get injured or hurt it affects the nervous system and let’s it react by the severity.
6 0
3 years ago
Read 2 more answers
Other questions:
  • Evidence of a chemical change would be a ___________________. Question options: spinning top. rusting car fender. spilled bucket
    15·1 answer
  • What mass of sulfur must be used to produce 17.5 L of gaseous sulfur dioxide at STP according to the following equation?
    13·1 answer
  • How do you write the balanced equation for strontium hydroxide and zirconium (I) perchlorate
    12·1 answer
  • Heat capacity depends on-<br><br> A. pressure<br> B. mass<br> C. density<br> D. joules
    11·2 answers
  • Question 13 (1 point)
    12·2 answers
  • Which option is an example of a chemical property?
    14·2 answers
  • What is Hydroelectricity?​
    14·2 answers
  • What is the atomic number of the element shown?<br> O A. 26<br> B. 27.0<br> C. 40.0<br> D. 13
    15·1 answer
  • Which of the following is/are true?
    10·1 answer
  • Can someone help me...........................
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!