3 years ago

Which best Describes How the function of the Cell Membrane differs in plant and animal Cells

Physics

1 answer:

kramer3 years ago

8 0

Answer:

Explanation:

Animals do not have cell wall thus membrane controls movement in and out while in plants it helps store genetic material inside

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Gravity such as magnets

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How do I spell pineapple apple pen

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A mass of 790 kg is hanging from a crane (neglect the mass of the cable and the hook). While the mass is being lowered, it is sp

Margarita [4]

Answer:

Explanation:

Given

mass of object hanging from crane is $m=790\ kg$

mass is speeding up with $a=2.7\ m/s^2$

If T is the Tension in the cable then

$mg-T=ma$

$T=mg-ma$

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4 years ago

A rock slides down from A to B along the inside surface of a frictionless hemispherical bowl. As the rock slides, mechanical ene

DIA [1.3K]

Answer:

the normal force on the rock acts perpendicular to the bowl's surface.

Explanation:

As we know that Normal force is the reaction force of two contact surfaces which always act perpendicular to the contact surfaces

Here we know that the rock is moving inside the bowl

So Normal force on the rock must perpendicular to the surface of the bowl which always passes through the center of the bowl.

Since the rock is moving in vertical plane so it must have two acceleration

1) Tangential acceleration which will increase the magnitude of the speed along the tangential path

2) Centripetal acceleration which will change the direction of the rock

So here only correct option will be

the normal force on the rock acts perpendicular to the bowl's surface.

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Select all that apply so it’s not just one answer. please and thanks :))

qwelly [4]

Using sources that are peer reviewed

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