2 years ago

Cientists have changed the model of the atom as they have gathered new evidence. One of the atomic models is shown below.

Physics

1 answer:

scZoUnD [109]2 years ago

3 0

Answer:

A few of the positive particles aimed at a gold foil seemed to bounce back.

Explanation:

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A ______________ is very general in nature, while a ________________ specifies what we want to study more specifically, suggesti

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research topic and research question (hypothesis)

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2 years ago

ADP binds to platelets in order to intiate the activation process. Two binding sites were identified on platelets, one with a Kd

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Answer:B) The binding site with a kid of7.9uM is the low affinity site.

Explanation:

The rate at which macro molecules like protein bind together is called affinity. The higher the affinity site the more readily these macro molecules fuses together. 7.9uM is a low affinity value than 359uM.

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3 years ago

A rectangular beam 10 cm wide, is subjected to a maximum shear force of 50000 N, the corresponding maximum shear stress being 3

nika2105 [10]

Answer:

Option B is the correct answer.

Explanation:

Shear stress is the ratio of shear force to area.

We have

Shear stress = 3 N/mm² = 3 x 10⁶ N/m²

Area = Area of rectangle = 10 x 10⁻² x d = 0.1d

Shear force = 50000 N

Substituting

$\texttt{Shear stress}=\frac{\texttt{Shear force}}{\texttt{Area}}\\\\3\times 10^6=\frac{50000}{0.1d}\\\\d=0.1667m=16.67cm$

Width of beam = 16.67 cm

Option B is the correct answer.

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2 years ago

6)Two forces are acting on 0.5-kg soccer ball.A is 230N and B is 250N.what is the acceleration of the soccer ball?

bezimeni [28]

Answer:

Explanation:

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2 years ago

if you pine cones are falling from a pine tree both pine cones are falling at the same speed if Pinecone one weighs less than pi

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The pine cone that weights more has more kinetic energy.

Explanation: Kinetic energy is directly proportional to mass. So the more an object weighs, the more kinetic energy it has.

Hope this helps! :)

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2 years ago