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
slamgirl [31]
4 years ago
9

Why should you never use the coarse adjustment on high power

Physics
1 answer:
umka21 [38]4 years ago
3 0

Answer:

First, the image moves in and out of focus too quickly, so that it is difficult to precisely adjust the focus. Second, you run the risk of crashing the objective into the slide. Use the coarse focus only with the 4x low power objective. You can use the fine focus knob with all objectives.

Explanation:

You might be interested in
When gasoline is burned in the cylinder of an engine, it creates a high pressure that pushes the piston. If the pressure is 100.
Marianna [84]

Answer:

\dot W=2.1074\ hp

Explanation:

Given:

  • pressure on the piston, P=100\ psi=689476\ Pa
  • diameter of the piston, d=3\ in=0.0762\ m
  • displacement of the piston, s=0.05\ m
  • time taken in the piston displacement, t=0.1\ s

<u>Now, we find the force on the piston:</u>

F=P.A

where, A = area upon which pressure acts

A=\pi.\frac{d^2}{4}

A=\pi.\frac{0.0762^2}{4}

A=0.00456\ m^2

\therefore F=689476\times 0.00456

F=3144.2638\ N

<u>we know that Power is given as:</u>

\dot W=\frac{F.s}{t}

\dot W=\frac{3144.2638\times 0.05}{0.1}

\dot W=1572.1319\ W

\dot W=2.1074\ hp

6 0
3 years ago
What impulse will be given to an object if it experiences a force of 0.5 N for 30 seconds
morpeh [17]

Answer:

<h2>15 Ns</h2>

Explanation:

The impulse of an object can be found by using the formula

impulse = force × time

From the question we have

impulse = 0.5 × 30

We have the final answer as

<h3>15 Ns</h3>

Hope this helps you

4 0
3 years ago
Which of the following is an observation and not an interference ​
Ahat [919]

A observation is gathering data.

A inference is a conclusion claimed on the basis of proof and reasoning.

Hope this helps :)

4 0
3 years ago
Speed can be represented by many different ____________________ of distance and time.
umka21 [38]
Units is the correct answer
4 0
3 years ago
A wire carrying a 32.0 A current passes between the poles of a strong magnet such that the wire is perpendicular to the magnet's
marin [14]

Answer:

2.24 T

Explanation:

From Electromagnetic Field,

F = BILsin∅................ Equation 1

Where F = Force on the wire, B = Field strength, I = current flowing in the conductor, L = length of the conductor, ∅ = The angle the conductor makes with the magnetic field.

Making B the subject of the equation,

B = F/ILsin∅..................... Equation 2

Given: F = 2.15 N, I = 32 A, L = 3.00 cm = 0.03 m, ∅ = 90° ( the wire is perpendicular to the magnetic field)

Substitute into equation 2

B = 2.15/(32×0.03×sin90°)

B = 2.15/0.96

B = 2.24 T.

Hence the Field strength = 2.24 T

7 0
4 years ago
Other questions:
  • Approximately ____ days have passed when 20% of Cobalt (Co) remains?
    6·1 answer
  • Calorimetry what is the relationship between heat energy and temperature answer key
    5·1 answer
  • The tendency of an atom to pull electrons toward itself is referred to as its _____.
    5·1 answer
  • Which of the following are metric units? gallons kilograms pounds inches
    14·2 answers
  • Which of the statements below is true?
    6·1 answer
  • A ball is dropped from a building of height h. Derive an equation for its velocity just before it hits the ground. Assume no air
    9·1 answer
  • Heather and Matt take 34 minutes to walk eastward along a straight road to a store 2.0km away. What is their average velocity in
    6·1 answer
  • It’s easy please help
    13·1 answer
  • Match the Vocabulary terms with their definitions.
    7·2 answers
  • Alchemists searched for ways to change lead into gold. Which type of change
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!