A Rocket Is Launched Straight Up from the Surface of Earth

question 47

Multiple Choice

A rocket is launched straight up from the surface of Earth with a speed v,such that the rocket reaches a maximum height of R_{E above} the surface.Find the launch speed of the rocket.Neglect air resistance.(R_E = 6.38 $\times$ 10⁶ m,M_E = 5.98 $\times$ 10²⁴ kg,G = 6.67 $\times$ 10^-11 N·m²/kg²)

• A)2.81 km/s
• B)5.59 km/s
• C)11.2 km/s
• D)7.91 km/s
• E)None of the above

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Definitions:

Cognitive restructuring

A core psychotherapeutic technique that aims to challenge and alter maladaptive thoughts and beliefs to reduce psychological distress and improve wellbeing.

Constructive coping

Strategies or methods used to deal with stress in a healthy and productive manner, focusing on problem-solving and emotional regulation.

Adaptive coping

Strategies or mechanisms that individuals use to manage and navigate stressful situations effectively.

Intrinsic motivation

The drive to engage in an activity for its own sake, rather than for some external reward or pressure.