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
nirvana33 [79]
3 years ago
5

How many minerals are found in earths crust ?

Physics
2 answers:
Damm [24]3 years ago
5 0
You can find your answer here www.rsc.org/education/teachers/resources/jesei/minerals/students.htm
tensa zangetsu [6.8K]3 years ago
3 0
8 i think....................
You might be interested in
What is one benefit to lifelong physical activity?How can you measure your level of intensity during a physical activity?
daser333 [38]
It will lower your Chances of diseases, heart attack, and cholesterol. you can measure your intensity by making sure your body is under a safe amount of stress
5 0
3 years ago
A glass of water sitting in direct sunlight evaporates over time. Explain this phase change in terms of the types of heat transf
olga_2 [115]
Well over time the temperature of the water increase causeing its moleclues to move alot which causes it's state change to a gas this is who we have rain.
6 0
3 years ago
Read 2 more answers
Two speakers, one directly behind the other, are each generating a 240-Hz sound wave. What is the smallest separation distance b
AveGali [126]

Answer:

The smallest separation distance between the speakers is 0.71 m.

Explanation:

Given that,

Two speakers, one directly behind the other, are each generating a 240-Hz sound wave, f = 240 Hz

Let the speed of sound is 343 m/s in air. The speed of sound is given by the formula as :

v=f\lambda\\\\\lambda=\dfrac{v}{f}\\\\\lambda=\dfrac{343\ m/s}{240\ Hz}\\\\\lambda=1.42\ m

To produce destructive interference at a listener standing in front of them,

d=\dfrac{\lambda}{2}\\\\d=\dfrac{1.42}{2}\\\\d=0.71\ m

So, the smallest separation distance between the speakers is 0.71 m. Hence, this is the required solution.

3 0
3 years ago
Read 2 more answers
Is vapor pressure independent of atmospheric pressure? - This is what my instructor told me, but I don't understand why. ...?
miss Akunina [59]
Vapor pressure<span> or equilibrium </span>vapor pressure<span> is defined as the </span>pressure<span> exerted by a </span>vapor<span> in thermodynamic equilibrium with its condensed phases at a certain temperature. It is independent with atmospheric pressure since it does not change by changing the atmospheric pressure only. </span>
5 0
3 years ago
Summerize how friction and inertia act on an object sliding on a flat surface
natta225 [31]
Inertia is when a object in motion will stay in motion or in a standing still state unless acted upon by a unbalancing force.
Friction is when a object slows down because it is rubbing against another object.

If a object is sliding across a surface, theoretically, it would not stop but because it is on a flat surface it would experience friction, this will disperse some of the kinetic energy that it has thus slowing the object down eventually, after some time, to a stop.

Hope this helps! :)
5 0
3 years ago
Other questions:
  • Simon is riding a bike at 12 km/h away from his friend Keesha.He throws a ball at 5 km/h back to Keesha, who is standing still o
    7·1 answer
  • A train is speeding down a railroad track at the speed of 50 miles per hour. From whose reference point is the train not moving?
    15·1 answer
  • Which of the following is NOT an example of general characteristic of expository writing? Select all that apply.. .
    12·2 answers
  • How many mL of water would be displaced by 408 g of lead
    13·1 answer
  • Conclusion on ohm's law experiment ​
    9·1 answer
  • Converging warm winds over warm ocean waters are the starting point for which of the following?
    7·2 answers
  • Frank does 2400J of work in climbing a set of stairs. If he does the work in 6 seconds, what is his power output?
    10·1 answer
  • What conditions are typcial of the soil the deeper we dig into it?
    13·1 answer
  • What caused the formation of the East African Rift Zone?
    12·2 answers
  • A ball moving with an initial velocity of 5 m/s comes to rest after 2s. What was the ball's acceleration?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!