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
USPshnik [31]
2 years ago
6

which part of the microscope will be used first to adjust the focus when starting with the lowest power lens?

Physics
1 answer:
noname [10]2 years ago
7 0

The first part of the microscope that should first be used to adjust the focus when starting with the lowest power lens would be the coarse adjustment knob.

There are two knobs in a typical light microscope with which objects on slides can be brought into focus:

  1. Coarse adjustment knob
  2. Fine adjustment knob

The 2 knobs are used to adjust the stage to either bring it up towards the objective lens or down away from them. The coarse adjustment knob, however, moves the stage a considerable distance with each turn. The fine adjustment knob, on the other hand, only moves the stage very little with each turn.

The lowest power lenses are often short. Hence, using the coarse adjustment knob is ideal in order to quickly bring objects on slides into focus.

The fine adjustment knob comes highly recommended at high objectives because high objectives lenses are usually long and using the coarse adjustment knob can lead to a breakage of the slide by the lens.

More on bringing objects into focus on a microscope can be found here: brainly.com/question/24319677

You might be interested in
The upward and downward movement of air in the atmosphere creates pressure systems. Arrange the steps in the correct order to de
OleMash [197]

Answer:

  1. Cool, dense air begins to sink downward.
  2. A high-pressure system forms.
  3. Pressure differences cause wind to blow outward.
  4. The skies clear, making way for pleasant weather.

Explanation:

The air near the land warms up and rises. Cool dense air sinks being heavier. This creates a pressure difference. A high pressure system forms. This difference leads to blowing of wind from High pressure to low pressure area. Eventually sky gets clear and we experience pleasant weather. Hence, the correct order to describe this is:

  1. Cool, dense air begins to sink downward.
  2. A high-pressure system forms.
  3. Pressure differences cause wind to blow outward.
  4. The skies clear, making way for pleasant weather.
4 0
3 years ago
Read 2 more answers
how long (in hours) would it take a deer to run 15 kilometers if it can maintain an average velocity of 37 km/hr?​
RUDIKE [14]
Use the formula t = d/v
t = 15 km/ 37 km/h
t = 0.4054
t = 0.41 h (rounded)
6 0
2 years ago
How do the presidential roles of chief executive and commander in chief differ?
Mashcka [7]
A. The commander in chief role deals only with the the military, while the chief executive role is broader
3 0
3 years ago
Water, which we can treat as ideal and incompressible, flows at 12 m/s in a horizontal pipe with a pressure of 3.0 x 10^4 Pa. If
frez [133]

Answer:

p2 = 9.8×10^4 Pa

Explanation:

Total pressure is constant and PT = P = 1/2×ρ×v^2  

So p1 + 1/2×ρ×(v1)^2 = p2 + 1/2×ρ×(v2)^2

from continuity we have ρ×A1×v1 = ρ×A2×v2  

v2 = v1×A1/A2  

and  

r2 = 2×r1

then:

A2 = 4×A1  

so,

v2 = (v1)/4  

then:

p2 = p1 + 1/2×ρ×(v1)^2 - 1/2×ρ×(v2)^2 = p1 + 1/2×ρ×(v1)^2 - 1/2×ρ×(v1/4)^2  

p2 = 3.0×10^4 Pa + 1/2×(1000 kg/m^3)×(12m/s)^2 - 1/2×(1000kg/m^3)×(12^2/16)  

     = 9.75×10^4 Pa

    = 9.8×10^4 Pa

Therefore, the pressure in the wider section is 9.8×10^4 Pa

5 0
3 years ago
n her abstract works Electric Dress and Untitled, Japanese artist Atsuko Tanaka created ________ through the repetition of lines
a_sh-v [17]

Answer:

b. unity

Explanation:

In the images I added you can observe Atsuko Tanak's works, in both of them you can observe how <em>the sum of colorful and repetitive elements creates the sensation of unity.</em>

I hope you find this information useful and interesting! Good luck!

4 0
3 years ago
Other questions:
  • A steel cable 1.25 in. in diameter and 50 ft long is to lift a 20-ton load without permanently deforming. What is the length of
    13·1 answer
  • What is the speed vf of the package when it hits the ground?
    7·1 answer
  • Sound is more effectively transmitted into a stethoscope by direct contact than through the air, and it is further intensified b
    13·1 answer
  • A thermocouple junction, which may be approximated as a sphere, is to be used for temperature measurement in a gas stream. The c
    11·1 answer
  • 8. A point of Charge +3.0 X 10^-7 Coulomb is placed 2.0 X 10^-2 from a second
    15·1 answer
  • An object with more mass has more kinetic energy than an object with less mass, if both objects are moving ____.
    10·2 answers
  • How does the intensity of a sound wave change if the distance from the
    9·1 answer
  • 1123123213213242141241
    5·1 answer
  • One particular descent goes from 2100m to 1600m. Assuming work done against friction is 90% of the potential energy change of th
    6·1 answer
  • what is our best hypothesis for why all the planets in our solar system orbit in the same direction as the sun rotates?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!