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
Thepotemich [5.8K]
3 years ago
13

Which of the following is not a compound A. Gold B. Water C. Salt D. Sugar

Physics
1 answer:
skelet666 [1.2K]3 years ago
6 0

Answer:

Gold

Explanation:

Water is H20

Salt is NaCl

Sugar is C12H22O11

Gold is Au with no other elements

You might be interested in
I need to submit my homework in an hour, this is only question i cant solve. someone pls help!!
Sauron [17]

Hope this helps.......☺

8 0
3 years ago
an object has a mass of 50kg, a final height of 20m and an initial height of 8m. what is the amount of work done
Andrei [34K]

amount of work done is 5880 J

Given:

mass of object = 50kg

Final height = 20m

initial height = 8m

To Find:

amount of work done

Solution:

work is done when a force acts upon an object to cause a displacement. You can calculate the energy transferred, or work done, by multiplying the force by the distance moved in the direction of the force.

The work done by gravity is given by the formula,

W = mgh

W = 50 x 9.8 x ( 20-8)

= 5880 J

So the work done is 5880 J

Learn more about Work done here:

brainly.com/question/25239010

#SPJ4

7 0
1 year ago
The index of refraction of silicate flint glass for red light is 1.620 and for violet light is 1.660 . A beam of white light in
Sonja [21]

Answer:

10.16 degrees

Explanation:

Apply Snells Law for both wavelenghts

\(n_{1}sin\theta_{1} = n_{2}sin\theta_{2}\)

For red

(1.620)(sin 25.5) = (1)(sin r)

For red, the angle is 35.45degrees

For violet

(1.660)(sin 25.5) = (1)(sin v)

For violet, the angle is 45.6 degrees

The difference is 45.6- 35.45 = 10.16 degrees

3 0
3 years ago
What is meant by the statement that a laser beam is coherent, mono-chromatic and parallel?
Artyom0805 [142]

Answer:

Laser light however contains only one wavelength. This property makes lasers monochromatic, meaning of one color. Another property of lasers is that all the wavelengths are in phase, meaning they wave together. This property is called coherency. Laser light travels in the same direction, parallel to one another.

8 0
3 years ago
Why silicon have large forward current as compared to germanium?​
Iteru [2.4K]

Answer:

The structure of Germanium crystals will be destroyed at higher temperature. However, Silicon crystals are not easily damaged by excess heat. Peak Inverse Voltage ratings of Silicon diodes are greater than Germanium diodes. Si is less expensive due to the greater abundance of element.

4 0
2 years ago
Other questions:
  • Is this statement true or false?<br><br> The littoral zone is exposed to air.
    13·1 answer
  • In a practical machine, the power output is _______ the power input.
    5·2 answers
  • A tugboat tows a ship with a constant force of magnitude F1. The increase in the ship's speed during a 10 s interval is 3 km/h.
    15·1 answer
  • A wrench 20 cm long lies along the positive y-axis and grips a bolt at the origin. A force is applied in the direction 0, 4, −3
    15·1 answer
  • The angular speed of an automobile engine is increased at a constant rate from 1200 rev/min to 3000 rev/min in12 s.(a) What is i
    10·1 answer
  • A ball encounters no air resistance when thrown into the air with 100 J of kinetic energy, which is transformed to gravitational
    11·2 answers
  • When two or more forces act on an object at the same time what are they called
    15·1 answer
  • Density of water is 1000kg/meter cube. what will be the volume of 35000kg water ​
    6·1 answer
  • What happens to light when it strikes a concave or convex lens?.
    12·1 answer
  • What is the potential difference needed to achieve a current of 16A with a resistance of
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!