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ankoles [38]
3 years ago
13

1. All screws give the same M.A.

Physics
2 answers:
Fofino [41]3 years ago
8 0

Answer:

Explanation:

1. All screws give the same M.A.

False - it depends on screw size and threads

2. A screw does its job by moving.

True - as far as screw as a machine

3. A screw with more threads has a smaller M.A.

False - more threads increase output force i.e. higher MA

4. Screws can be used to move things. *

True

igomit [66]3 years ago
4 0

Answer:

Explanation:

1. false

2. true

3. false

4. true

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How can the IMA of a first- class lever be increased?
Dimas [21]
IMA = Ideal Mechanical Advantage

First class lever = > F1 * x2 = F2 * x1

Where F1 is the force applied to beat F2. The distance from F1 and the pivot is x1 and the distance from F2 and the pivot is x2

=> F1/F2 = x1 /x2

IMA = F1/F2 = x1/x2

Now you can see the effects of changing F1, F2, x1 and x2.

If you decrease the lengt X1 between the applied effort (F1) and the pivot,  IMA decreases.

If you increase the length X1 between the applied effort (F1) and the pivot, IMA increases.

If you decrease the applied effort (F1) and increase the distance between it and the pivot (X1) the new IMA may incrase or decrase depending on the ratio of the changes.

If you decrease the applied effort (F1) and decrease the distance between it and the pivot  (X1) IMA will decrease.

Answer: Increase the length between the applied effort and the pivot.
4 0
4 years ago
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An apple falls from the top of the tree and takes 2 secs to hit the ground.
Afina-wow [57]
Height is 19.6133 meters and the Velocity is 19.613 m/s
3 0
3 years ago
A wave has a wavelength of 10mm and a frequency of 5 hz what is the speed?
geniusboy [140]
V=fλ
v=5*0.01
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3 0
4 years ago
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Conservation of energy says the kinetic energy and the potential energy for each trial should be equal. true or false answer fas
kogti [31]

Answer:

true

Explanation:

this is because potienal energy is energy that is stored, and kinetic is energy being used, as kinetic is used, potential is also being used.

8 0
3 years ago
Gallium is a solid metal at room temperature, but it will melt to a liquid in your hand. the melting point of gallium is 85.6 f.
Nimfa-mama [501]

Fahrenheit  =  85.6°F

Celsius  =  (5/9) (Fahrenheit - 32)

Celsius  =  (5/9) (85.6 - 32)

Celsius  =  (5/9) (53.6)

<em>Celsius  =  29.78°C</em>

Kelvin  =  Celsius + 273.15

Kelvin  =  29.78 + 273.15

<em>Kelvin  =  302.93K  </em>

5 0
2 years ago
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