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
Ainat [17]
3 years ago
13

How can you determine the class of lever of simple machine?​

Physics
1 answer:
V125BC [204]3 years ago
4 0

Answer:

A first-class lever has the fulcrum between the load and the effort. A second-class lever has the load between the effort and the fulcrum. A third-class lever has the effort between the load and the fulcrum. A see-saw is an example of a first-class lever.

Explanation:

You might be interested in
An industrial firm has two electrical loads connected in parallel across the power source. Power is supplied to the firm at 4000
Andrei [34K]

Answer:

I = 27.65A < 40.59°

PowerFactor = 0.76

Explanation:

Current on the heating load is:

I1 = 30KW / 4KV = 7.5A < 0°

Current on the inductive load:

I2 = (150KVA*0.6) /4KV = 22.5A  with an angle of acos(0.6)=53.1°

The sum of both currents is:

It = I1 + I2 = 7.5<0° + 22.5<53.1° = 27.65<40.59°

Now, the power factor will be:

pf = cos (40.59°) = 0.76

7 0
3 years ago
What is the acceleration of a 55 kg block of cement when pulled sideways with a net force of 356 N? Answer in units of m/s2.
puteri [66]
F=ma
a=F/m = 356/55 = .... m/s2
5 0
3 years ago
Jasmine makes a note card about series circuits. she records the points shown. a 2 column table with 1 row. the column on the le
Bess [88]

Jasmine need to correct the error by switching the headings on the columns adding the title parallel circuits.

<h3>What is a parallel circuit?</h3>

A parallel circuit is a circuit in which the components are connected to a common junction. This implies that if one bulb goes out in a parallel connection, all the bulbs will go out.

As such, Jasmine need to correct the error by switching the headings on the columns adding the title parallel circuits.

Learn more about parallel connection: brainly.com/question/12400458

#SPJ4

7 0
2 years ago
While on an ice-fishing trip, you find yourself holding a 10 kg fish but stuck in the middle of
Anna007 [38]

The forward force you exert on the fish and your backward action will allow you to reach the shore.

<h3>Newton's third law of motion</h3>

Newton's third law of motion states that for every action, there is an equal and opposite reaction.

Fa = -Fb

Let's assume the fish is held in the hook, this will give you the opportunity to throw the fish forward while still holding it.

When the the fish is thrown forward, you will move backwards with an equal force based on Newton's third law. Your backward momentum towards the shore will help to maintain equal linear momentum between you and the fish.

Thus, this forward force of the fish and your backward action will allow you to reach the shore.

Learn more Newton's third law of motion here: brainly.com/question/25998091

3 0
2 years ago
Why does water that is frozen in an ice cube tray stay in the shape of a cube when it is
quester [9]
The Answer is B : The water particles become locked in place.
6 0
3 years ago
Other questions:
  • In 1665 Sir Isaac Newton proposed the fundamental law of gravitation as a universal force of attraction between any two bodies.
    13·2 answers
  • A force that comes from the action of earth's Gravity is called
    6·2 answers
  • ¿que es el calor latente
    5·1 answer
  • A heat engine is designed to do work. This is possible only if certain relationships between the heats and temperatures at the i
    14·1 answer
  • A solid metal sphere of diameter D is spinning in a gravity-free region of space with an angular velocity of ω. The sphere is sl
    7·1 answer
  • Apollo astronauts took a "nine iron" to the Moon and hit a golf ball about 180 m.
    5·2 answers
  • Materials with resistivities between those of good conductors and those of insulators are called:
    14·2 answers
  • This means divide or to take apart the pieces. ( science )
    14·1 answer
  • Which of the following materials would want an electric cord insulated with so you do not get shocked?
    6·2 answers
  • PLS HURRY AND ANSWER THIS IM GIVING 100 POINTS AND ILL MARK BRAINLIEST
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!