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
babunello [35]
4 years ago
9

Identify two simple machines in this compound machine. A. screw, lever B. screw, incline plane C. double pulley D. lever, pulley

Physics
2 answers:
seropon [69]4 years ago
5 0
It's A, the Screw leaver 
irinina [24]4 years ago
3 0

Answer: correct option is (A) screw and lever.


Explanation :


Machines make our work easier. There are many types of simple machines i.e. lever, pulley, wheel and axle, screw, inclined plane and wedge.  

In the given picture, there are two simple machines as screw and lever.


Nutcracker, stapler, tongs and tweezers are the example of lever.


Examples of use of screw are in a jar lid and ballpoint pens.

You might be interested in
Magnus has reached the finals of a strength competition. In the first round, he has to pull a city bus as far as he can. One end
ozzi

Answer:

The total work that the rope does to Mangnus is - 5780 Jules.

Explanation:

By definition, the work is defined as:

W=F.d

Where F and d are the force and the total displacement. Note that in the definition the product is a scalar product since F and d are both vectors.  

Take into account that according to third Newton's law the force that the rope does to Magnus is opposite to the force that Magnus does to the rope, therefore the scalar product will be negative due the rope's force goes against to Magnus displacement.  

For calculating the work, we take 2500 N as the value for the force and 2.312 meters as the value for the displacement:

W=-2500 N * 2.312 m

W=-5780 Nm = -5780 J

7 0
3 years ago
Calculate the net force on particle qi.
aksik [14]

Answer:

-12.12

Explanation:

i just added them together and it worked.

4 0
2 years ago
Replacing an object attached to a spring with an object having 14 the original mass will change the frequency of oscillation of
Pachacha [2.7K]

Answer:

<em>The frequency changes by a factor of  0.27.</em>

<em></em>

Explanation:

The frequency of an object with mass m attached to a spring is given as

f = \frac{1}{2\pi } \sqrt{\frac{k}{m} }

where f is the frequency

k is the spring constant of the spring

m is the mass of the substance on the spring.

If the mass of the system is increased by 14 means the new frequency becomes

f_{n} = \frac{1}{2\pi } \sqrt{\frac{k}{14m} }

simplifying, we have

f_{n} = \frac{1}{2\pi \sqrt{14} } \sqrt{\frac{k}{m} }

f_{n} = \frac{1}{3.742*2\pi  } \sqrt{\frac{k}{m} }

if we divide this final frequency by the original frequency, we'll have

==> \frac{1}{3.742*2\pi  } \sqrt{\frac{k}{m} }  ÷  \frac{1}{2\pi } \sqrt{\frac{k}{m} }

==> \frac{1}{3.742*2\pi  } \sqrt{\frac{k}{m} }  x  2\pi \sqrt{\frac{m}{k} }

==> 1/3.742 = <em>0.27</em>

7 0
3 years ago
Godric and Savos are a few meters apart, at one end of the football field. Peter is at the other end of the field. Godric and Sa
Troyanec [42]

Answer:

From Savos point of view, Gadros appear not to be moving

Explanation:

The given parameters are;

The distance between Godric and Savos = A few meters

The location of Godric and Savos = One end of the field

The location pf Peter = The other end pf the field

The speed with which Godric and Savos are moving towards Peter = 4 m/s

Let the positive x-direction be the direction in which Godric and Savos are moving

Therefore;

The speed and direction with which Godric is moving = The speed and direction with which Savos is moving = 4·i m/s

From Savos point of view, the relative speed with which Godric is moving = (The speed and direction in which Godric is moving) - (The speed and direction in which Savos is moving) = 4·i m/s - 4·i m/s = 0 m/s

Therefore, from Savos point of view, the relative speed with which Godric is moving = 0 m/s or Gadros appears stationary or not to moving.

7 0
3 years ago
4. Tectonic plates are located on the __ and __.<br><br> 6. Inner core is made of ___ and ____.
DanielleElmas [232]

Answer:

  • Tectonic plates are located in the lithosphere.
  • Inner core is made of iron and nickel.

Hope it helps!

6 0
3 years ago
Read 2 more answers
Other questions:
  • Based on the pattern of reflections shown below, which of the following statements must be true?
    8·1 answer
  • Using the example in the picture, explain what happens when you bounce a basketball in concrete. 10 points will be given for the
    5·2 answers
  • If a ball is thrown upward, how fast would it have to be thrown to reach a maximum height of 29m? How long was the ball in the a
    14·1 answer
  • How to understand that an inductor behaves like short circuit and capacitor like an open circuit in steady state in a network?
    15·1 answer
  • Lena is studying the properties of light in a laboratory. If she increases the amplitude of the light waves she is studying, wha
    11·1 answer
  • A 0.16 kg billiard ball moving at 1.20 m/s collides elastically with one of the same mass at rest. It continues at a speed of 0.
    6·1 answer
  • How are kyanite crystals formed
    11·1 answer
  • What genetic information cannot be obtained from the punnett square?
    7·1 answer
  • A chart showing the type of reproduction that occurs in several organisms is shown below. Organism Type of Reproduction Bacteria
    8·2 answers
  • Is kane brown a true country singer?<br> A.yes<br> B.no
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!