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
Serggg [28]
3 years ago
13

Could a mixture be made up of only elements and no compounds. if so explain

Physics
1 answer:
Irina18 [472]3 years ago
7 0

I racked my brain for almost 10 minutes, until suddenly,
it hit me !

You're breathing one right now !  So am I .

Air is a mixture of a lot of elements. 
Nitrogen, Oxygen, and Argon account for  99.964 percent.

The other 0.036 percent is mainly Neon, Helium, Krypton,
and Hydrogen ... more elements.

Then there are Carbon Dioxide and water vapor.
Yes, those are compounds.  But together, they add up
to very little of the air we breathe, and if both of them
suddenly disappeared, we would hardly notice it.

You might be interested in
A traditional unit of length in Japan is the ken (1ken =1.97 m) . What are the ratios of (a) square kens to a square meters? and
Law Incorporation [45]
4 . I hope I helped your welcome
6 0
4 years ago
Please help, I don't get this
Trava [24]
C the third one i think good luck
5 0
3 years ago
A bowling ball is 21.6 cm in diameter. What is the angular speed of these ball whenit is moving at 3.0 m/s?
sergejj [24]

Answer:

Angular speed = 27.78 rad/s (Approx)

Explanation:

Given:

Diameter = 21.6 cm

Speed = 3 m/s

Find:

Angular speed

Computation:

Radius = 21.6 / 2 = 10.8 cm = 0.108 m

Angular speed = v / r

Angular speed = 3 / 0.108

Angular speed = 27.78 rad/s (Approx)

3 0
3 years ago
A steel ball bearing with a radius of 1.5 cm forms an image of an object that has been placed 1.1 cm away from the bearing’s sur
Nonamiya [84]

Answer:

Check the explanation

Explanation:

given

R = 1.5 cm

object distance, u = 1.1 cm

focal length of the ball, f = -R/2

= -1.5/2

= -0.75 cm

let v is the image distance

use, 1/u + 1/v = 1/f

1/v = 1/f - 1/u

1/v = 1/(-0.75) - 1/(1.1)

v = -0.446 cm <<<<<---------------Answer

magnification, m = -v/u

= -(-0.446)/1.1

= 0.405 <<<<<<<<<---------------Answer

The image is virtual

The image is upright

given

R = 1.5 cm

object distance, u = 1.1 cm

focal length of the ball, f = -R/2

= -1.5/2

= -0.75 cm

let v is the image distance

use, 1/u + 1/v = 1/f

1/v = 1/f - 1/u

1/v = 1/(-0.75) - 1/(1.1)

v = -0.446 cm <<<<<---------------Answer

magnification, m = -v/u

= -(-0.446)/1.1

= 0.405 <<<<<<<<<---------------Answer

Kindly check the diagram in the attached image below.

5 0
3 years ago
A physicist found that a force of 1.32 N was measured between two charged spheres. The distance between the spheres was 95 cm. C
labwork [276]

The electric force (and the gravitational force too) is inversely proportional
to the square of the distance between the objects involved.

In this question, the distance is increased by a factor of  (1.25/0.95) .

So the electric force will change by the factor of  (0.95/1.25)² .

The new force is

           (1.32 N) · (0.95/1.25)²  =  0.762... newton   (rounded)
5 0
3 years ago
Other questions:
  • A box is initially sliding across a frictionless floor toward a spring which is attached to a wall. the box hits the end of the
    10·1 answer
  • A child’s toy launches a model parachutist of mass 0.40 kg vertically upwards. The model parachutist reaches a maximum height of
    12·1 answer
  • The rotating nozzle sprays a large circular area and turns with the constant angular rate theta overscript dot endscripts = 2.2
    6·1 answer
  • Why is the following situation impossible? A skater glides along a circular path. She defines a certain point on the circle as h
    10·1 answer
  • List an example of each of the four classes polymers that living things make and use
    5·1 answer
  • Which phenomenon occurs when light falls on a smooth mirror? . . A). Specular reflection. B) diffusion. C) refraction . D) diffu
    8·2 answers
  • Identify the reaction type for each generic chemical equation. A + B → AB: AB → A + B: Hydrocarbon + O2 → CO2 + H2O: AB + CD →
    13·2 answers
  • 4. How long would it take for a water balloon to fall 39 m if we dropped it starting from rest down an
    15·1 answer
  • On a frictionless surface how much force is necessary to accelerate a 0.49 kg object to the left at 4.8 m/s2?
    13·1 answer
  • The thermal energy of what system does change
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!