A Projectile Is Ejected from a 25-M High Tower with a Velocity

question 28

Multiple Choice

A projectile is ejected from a 25-m high tower with a velocity of 40 m/s at an angle of 30 degrees to the horizontal first on Earth and then on Mars.What is the ratio of the time taken to hit the ground on Mars compared to Earth? (Assume g_Mars = 0.38g_Earth)

• A)2.4
• B)2.6
• C)0.38
• D)6.9
• E)1.0

---

Definitions:

fMRI

Functional Magnetic Resonance Imaging, a neuroimaging technique that measures brain activity by detecting changes associated with blood flow.

Control Groups

Groups in experiments that do not receive the experimental treatment, allowing researchers to assess the treatment's effect by comparing it against this baseline.

Experimental Groups

Groups in an experiment that receive the treatment or variable being tested, allowing researchers to assess its effects.

Representative Sample

A part of a population that accurately represents the entire group's composition.