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vlabodo [156]
3 years ago
9

Which one of the following is NOT a simple machine?

Physics
1 answer:
ivann1987 [24]3 years ago
6 0
It is hammer because hammers are not examples of a simple machine
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Two objects are connected by a string that passes over a frictionless pulley as in the figure below, where m1 < m2 and a1 and
Lady_Fox [76]

Answer:2

Explanation:

Given

m_2>m_1

and a_1 and a_2 are the acceleration of 1 and 2

Suppose  T is the Tension

then for block 2

m_2g-T=m_2a

m_2(g-a)=T---1

For block 1

T-m_1g=m_1a

T=m_1(g+a)----2

equate 1 and 2

m_2(g-a)=m_1(g+a)

a=\frac{m_2-m_1}{m_1+m_2}

where a=a_1=a_2

thus we can see that a is less than g

therefore a_2 < g

4 0
3 years ago
Subduction occurs when:
Inessa05 [86]

Explanation:

a plate with oceanic crust sinks beneath a plate with

continental crust is the answer

5 0
3 years ago
Which structure is represented by the letter D? Choose 1 answer: (Choice A) A Chloroplast (Choice B) B Vacuole (Choice C) C Mito
Otrada [13]

Answer:

vacuole

Explanation:

Remember vacuoles in plant cells are a lot bigger than there animal cell counterparts.

6 0
3 years ago
Explain how carbon is cycled between the hydrosphere and geosphere. Use specific examples.
joja [24]
Carbon is found in the solid form in geosphere of our earth. Coal and oil are some of the examples of materials containing carbon in the geosphere. when the coal or oil is burnt, carbon dioxide is formed and released in atmosphere. This carbon dioxide is absorbed by the water of the hydrosphere with the help of algae and plankton. The water turns acidic in nature. This way carbon is transferred from geosphere to hydrosphere.
5 0
4 years ago
Where would you expect the oceanic crust to be the hottest
Dimas [21]
It is the hottest at the mid ocean ridge because new crust is formed from the lava.
8 0
4 years ago
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