QUESTION 1 Chapter 4.1. Over geological time, what is the most widespread proces

Question

QUESTION 1 Chapter 4.1. Over geological time, what is the most widespread process shaping the surface of the solid bodies in our Solar System? O a Volcanism O D Impact Cratering O C Plate Tectonics Od Solar Radiation QUESTION 2 Chapter 4.1. How fast are asteroids that impact Earth's atmosphere typically traveling? O a 1000 miles per hour O b 70 km per second O G.19 km per second d.1/10 the speed of light QUESTION 3 Chapter 4.1. What is the minimum impact velocity of any asteroid or comet hitting a planet or moon? O a Zero miles per hour O b.19 km per second O The escape velocity of the target planet or moon dIt cannot be determined without knowing more about the origin of the impacting object

Explanation / Answer

Question 1 . b) Impact Cratering.

Earth and the other planets are constantly bombarded by meteoric particles from space. Early in the formation of the solar system, frequent and large impacts were common for all of the planets and moons. This "period of heavy bombardment" ended by about 3.9 billion years ago. However, impacts still occur across our solar system.

Question 2. b. 19 km per second.

Asteroids enter the earth’s atmosphere at very high speeds, ranging from 11 km/sec to 72 km/sec. Although there is the Chelyabinsk meteor in Russia that was claimed to be hitting the atmosphere at 19 km/s. The typical impact speed of an asteroid in 17km/s.

Question 3. The minimum impact velocity of an asteroid or comet hitting a planet or moon will be C. The escape velocity of the target planet or moon (for instance, Ve of the Earth is 11.186 km/s while the minimum impact velocity is 11 km/s with asteroids)

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.