The Gravitational Field on the Surface of the Earth Is $\times$

question 79

Multiple Choice

The gravitational field on the surface of the earth is (G = 6.67 $\times$ 10^-11 N m²/kg²,mass of the earth is 5.98 $\times$ 10²⁴ kg,radius of the earth is 6.38 $\times$ 10⁶ meters)

• A) 3.40 N/kg.
• B) 6.20 N/kg.
• C) 9.80 N/kg.
• D) 10.1 N/kg.
• E) 20.3 N/kg.

---

Definitions:

Electrical Brain Stimulation

A method involving direct electrical stimulation of the brain to treat certain conditions, such as Parkinson's disease, or to study brain function.

Transcranial Magnetic Stimulation

A noninvasive procedure that uses magnetic fields to stimulate nerve cells in the brain to improve symptoms of depression.

Positron Emission Tomography

An imaging technique that uses radioactive substances to visualize and measure metabolic processes in the body.

Neuroscientists

Scientists who study the nervous system, including the brain, spinal cord, and neural networks.