Two Objects with Masses M₁ = 30,000 Kg and M₂ $\times$

question 2

Multiple Choice

Two objects with masses M₁ = 30,000 kg and M₂ = 70,000 kg are initially very far apart and at rest.If due to gravitational attraction the two objects attract each other,calculate their total kinetic energy when they are 100 km apart.

• A)1.4 \(\times\) 10^-3 J
• B)1.4 \(\times\) 10^-11 J
• C)1.4 \(\times\) 10^-6 J
• D)0.7 \(\times\) 10^-3 J
• E)0.7 \(\times\) 10^-6 J

Recognize the impact of infections and loud noises on ear health.

Differentiate between the visual systems of arthropods and vertebrates.

Understand the structure and function of the human eye.

Understand the physiological processes involved in light detection by photoreceptors.

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Definitions:

Andrew Huxley

A British physiologist and biophysicist awarded the Nobel Prize for his work on the nerve impulse and muscle contraction.

Nobel Prize

Prestigious international awards given annually in several categories including Physics, Chemistry, Medicine, Literature, and Peace, recognizing significant achievements.

Motor Neurons

Motor neurons are nerve cells responsible for conveying signals from the brain and spinal cord to muscles, instructing them to contract and thus enabling movement.

Nerve Impulses

The electrical signals that pass along the nerve fibers, facilitating communication between neurons or between neurons and muscles.