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Bezzdna [24]
2 years ago
7

Force (f) = ? mass (m) = 75kg gravity (g) = 9.8m/s^2

Physics
1 answer:
Sloan [31]2 years ago
5 0

Answer:

735 N

Explanation:

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To obtain the same resistance force, a greater force must be exerted in a machine of lower efficiency than in a machine
Sindrei [870]

Answer: True.

Explanation:

A resistance force is also known as friction. And the efficiency of a machine is affected by friction.

A machine of lower efficiency has higher magnitude of friction than a machine of higher efficiency.

Therefore, To obtain the same resistance force, a greater force must be exerted in a machine of lower efficiency than in a machine of higher efficiency. This is true

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3 years ago
Pls help i’m in a test and don’t know what to do
Tresset [83]

Answer:

I think its C, even with the typo.

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An object is located 20.0 cm from a convex lens. The lens focuses light at a
V125BC [204]

The Answer Is :  D. 20.0 cm

My Reason : These types of problems can all be solved using the lens or mirror equation.

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It is real, inverted, and the same size as the object

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3 years ago
There are several ways to model a compound one type of model is shown ?what is the chemical formula for the molecule modeled?
s2008m [1.1K]

The is organic compound with the correct chemical formula C4H9O2.

<h3>What is a model?</h3>

A model is a representation of reality. A model serves the purpose of prediction as well as explanation.

Looking at the model of the molecule we can see that it is the organic compound with the correct chemical formula C4H9O2. The molecule is shown in the image attached to this answer.

Missing parts:

There are several ways to model a compound. One type of model is shown.

What is the chemical formula for the molecule represented by the model?

CHO

C4H9O2

C4H8O

C3H8O2

Learn more about molecular models:brainly.com/question/156574?

#SPJ1

7 0
2 years ago
Explain why Earth and other planets were not solid when they formed during the beginning of the Precambrian, approximately 4,600
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earth still is not solid ... core is molten ... volcanoes, sea is liquid

at v v v beginning was gas ????

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