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erma4kov [3.2K]

3 years ago

8

A screw incorporates which other simple machine?

2 answers:

Daniel [21]3 years ago

5 0

Answer:

Inclined Plane

Explanation:

A screw incorporates which other simple machine?

lever

wheel and axle

inclined plane

pulley

Radda [10]3 years ago

3 0

Answer:

Inclined plane.

Explanation:

Geometrically, a screw is a narrow inclined plane that is wrapped around a cylinder. Like the other simple machines a screw can amplify force; a small rotational force (torque) on the shaft can exert a large axial force on a load.

A screw is a cylinder with a head (solid top) at one end and a pointed tip (like a nail) at the other end.

The mechanical advantage of the screw depends on the space between the threads and the length (and thickness) of the screw. The closer the threads are, the greater the mechanical advantage. It is easier to drive a screw into an object if the thread spacing is smaller.

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(No files or links) Which of the following is a defining property of gases?

MariettaO [177]

The answer for this is d

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How does a change in medium affect light?

Ymorist [56]

<span>The speed of light changes as it passes from one medium to another medium due to the difference in the density of the two media. This is the reason for refraction of light also.</span>

7 0

3 years ago

Rafaela is a physical education teacher and has2525 girls and 3535 boys in herclass.She wants to divide the class into teams of

Paha777 [63]

-- The greatest common factor of 2525 and 3535 is 5.

-- So the greatest possible number of teams is 5.

-- Each of the five teams will have 505 girls and 707 boys.

-- Rafaela is a superwoman ! She's handling more kids in that class than there were in my whole high school !

She has 6,060 students in her class, so I'm not surprised that she wants to divide the class up into smaller groups.

But come on ! She's going to form 5 teams, and she thinks that her job will be easier that way, because each team will have 'only' 1,212 students on it !

And these are all in one class ! If Rafaela is a physical education teacher, then SURELY she's teaching more than one class !

Or maybe not. I'll betcha whenever Rafaela is teaching her physical education class, all the other teachers are taking it easy, because Rafaela is responsible for every student in the school that hour.

And possibly several OTHER schools in town too.

7 0

3 years ago

A 1.0 kg ball and a 2.0 kg ball are connected by a 1.1-m-long rigid, massless rod. The rod is rotating cw about its center of ma

katen-ka-za [31]

The torque that will bring the balls to halt, t = 0.34 Nm

What is rotating?

In physics and mechanics, torque is the rotational equivalent of linear force. It is also referred to as the moment, moment of force, rotational force, or turning effect, depending on the field of study. It represents the capability of a force to produce a change in the rotational motion of the body.

Center of Mass of Rod = (1 * 0 + 2.0 * 1.1) /(1.0 + 2.0)

Center of Mass of Rod = 0.73 m

ω = 21 rpm

ω = 21 * (2*pi)/60 rad/s

ω = 2.2 rad/s

Time to bring Halt = 5.2 s

Angular De-acceleration = 2.2/5.2 rad/s^2

α = 0.423 rad/s^2

We know,

torque = (moment of inertia) * (angular acceleration)

t = I * α

Where

I = m1*r1^2 + m2*r2^2

I = 1kg * (0.73)^2 + 2kg * (1.1-0.73)^2

I = 0.8067 kg*m^2

Substituting Values -

torque = 0.8067 Kg*m^2 * 0.423 rad/s^2

torque = 0.34 N*m

The torque that will bring the balls to halt, t = 0.34 Nm

To learn more about the torque the link is given below:

brainly.com/question/18883167?

#SPJ4

7 0

1 year ago

When sugar is burned, water vapor and carbon dioxide are produced. A sugar molecule has a specific number of carbon, hydrogen, a

Anuta_ua [19.1K]

Answer:

Number of carbon, hydrogen, and oxygen atoms in sugar:

C: 12
H: 22
O: 11

Explanation:

1) Given balanced chemical equation:

Sugar(s) + 12O₂(g) → 11H₂O(g) + 12CO₂(g)

2) Mass conservation law: in a chemical reaction, the atoms are not created nor destroyed; they recombine to form new substances, so the number of atoms of each kind in the reactants is equal to the number of atoms of the same kind in the products.

3) Balance.

-----------------------------------------------------------------------------------------------------

Atom Products = Reactants

-----------------------------------------------------------------------------------------------------

C 12CO₂ ⇒ 12 = 12 in sugar

-----------------------------------------------------------------------------------------------------

H 11H₂O ⇒ 11 × 2 = 22 = 22 in sugar

-----------------------------------------------------------------------------------------------------

O 12CO₂ ⇒ 12 × 2 = 24 12 × 2 = 24 in O₂ + x in sugar

11H₂O ⇒ 11

----------------------------- --------------------------------------------------

24 + 11 = 35 = 24 + x

----------------------------------------------------------------------------------------------------

Solve for x: 35 = 24 + x ⇒ x = 35 - 24 = 11 ∴ 11 O atoms in sugar

Conclusion:

Number of carbon, hydrogen, and oxygen atoms in sugar:

C: 12
H: 22
O: 11

6 0

4 years ago

Read 2 more answers