(c) [3] The meteoroid that created the crater was spherical and made of rock, and it...

(c) [3] The meteoroid that created the crater was spherical and made of rock, and it had an impact velocity of

5 km/s. Assuming that energy was conserved in the collision, what was the size of the meteoroid?

(d) [5] Comets have a density of one third the value of rocky meteoroids, but can travel three times as fast. If a comet the same size of the meteoroid had impacted and caused the crater, with a density of 1000 kg/m3 and an impact velocity of 15 km/s, what size crater would have been made? Would it be larger or smaller than that made by a rocky meteoroid?

(e) [3] Consider the material excavated by the impactor, the ejecta. Ejecta blankets are found on both Mercury and the Moon, but on Mercury, the ejecta is generally much closer to the crater compared to the Moon. Explain why this is

ps:

part a and b of this question for more background

(a) [1] Suppose on the Moon, a meteoroid creates a crater in the shape of a hemisphere with a radius of 1 km.
Calculate the mass of material excavated, assuming a density of 1920 kg/m3 for regolith.
answer :

m= 4.0x10^12 kg

(b) [1]Whenthemeteoroidmakesthecrater, the excavated material is raised vertically by a distance equal to the
radius of the crater, 1 km. Calculate the potential energy required to lift the material.
answer: 6.51 x 10^15 J

Expert Solution

genius_generous answered 2 years ago

3. As a tool experiences crater wear, in general, the deepest point in the crater formed...

3. As a tool experiences crater wear, in general, the deepest point in the crater formed on the tool rake face occurs at a distance away from the tool tip, rather than at the tool tip. Elucidate the physics behind this observation.

Consider a spherical capacitor made of the 3 linear dielectrics: 1 for a < r <...

Consider a spherical capacitor made of the 3 linear dielectrics: 1 for a < r < b, 2 for b < r < c, and 3 for c < r < d. There is conducting material covering the inner surface (r=a) and the outer surface (r=d). What is the capacitance of this device? You can assume that there is total charge Q and -Q built up on each of the inner and outer conducting surfaces and that there is a...

A spherical rock (R= 19 cm, p=3350 kg/m^3) is attached to the end of a copper...

A spherical rock (R= 19 cm, p=3350 kg/m^3) is attached to the end of a copper wire (diameter 3 mm, effective length of 1.21 m) and then revolved in a circular path in a vertical plane with a period of 0.97 s. Determine the maximum and the minimum length of the copper wire. (You may assume the path remains circular and the motion is uniform).

value unit spherical volume (in^3) spherical volume (m^3) spherical volume (gallons^3) x in ? ? ?...

value unit spherical volume (in^3) spherical volume (m^3) spherical volume (gallons^3) x in ? ? ? So I'm being assigned the task of creating a custom conversion table that utilizes logical statements for the purpose of converting the given values from the input units into the other listed units within excel. I've tried a few, however, I don't know how to list multiple statements. For example, if B2, the user writes "m", then each of the corresponding spherical volume units...

Flouride selective electrodes are created by replacing some of the La^3+ ions in a membrane made...

Flouride selective electrodes are created by replacing some of the La^3+ ions in a membrane made of a LaF3 crystal with Eu^2+. A. What is the process of intentionally contaminating the crystal with Eu^2+ called, how do it make the membrane selective for F^-? B. Which of the following species do you expect to interfere with this ion-selective electrode and why? Species: Na+, Cl-, S^2-

Andrew Thomas, a sandwich vendor at Hard Rock Caf's annual Rockfest created a table of conditional...

Andrew Thomas, a sandwich vendor at Hard Rock Cafe's annual Rockfest created a table of conditional values for the various alternatives (stocking decision) and states of nature (size of crowd): AlternativesStates of Nature Big Average SmallLarge Stock$22,000$12,000-$2,000Average Stock$14,000$10,000$6,000Small Stock$9,000$8,000$4,000 The probabilities associated with the states of nature are 0.3 for a big demand, 0.5 for an average demand, and 0.2 for a small demand.1. Determine the alternative that provides Andrew the greatest Expected Monetary...

12. A simple pendulum is made of a hollow spherical bob full of mercury and suspended...

12. A simple pendulum is made of a hollow spherical bob full of mercury and suspended by a thin string. If the mercury begins to leak from the small hole at its bottom, then its time period: (a) Increases. (b) Decreases. (c)First increases and then decreases till it is the same again (d) First decreases and then increase still it is the same again

How would you prove that a silica microsphere made by the Stobber process is actually spherical?...

How would you prove that a silica microsphere made by the Stobber process is actually spherical? What affect might deviations from an exact spherical shape have on crystallizing opals and their optical properties?

A 7.0-kg rock at a temperature of 30°C is dropped into a shallow lake at 30°C...

A 7.0-kg rock at a temperature of 30°C is dropped into a shallow lake at 30°C from a height of 1.0×10^5 m. What is the resulting change in entropy of the universe? (b) If the temperature of the rock is 100°C when it is dropped, what is the change of entropy of the universe? Assume that air friction is negligible (not a good assumption) and that c=860J/kg·K is the specific heat of the rock.

A spherical stainless steel (? = 7,800 kgm-3; c = 460 Jkg-1K-1; k = 17 Wm-1K-1;...

A spherical stainless steel (? = 7,800 kgm-3; c = 460 Jkg-1K-1; k = 17 Wm-1K-1; ? = 0.9) reactor of 1.0-m inner diameter and 1.0-cm wall thickness is filled with reactants (? = 1,100 kgm-3; c = 4,200 Jkg-1K-1) that are initially at 25 ?C. An exothermic reaction within the reactor generates heat uniformly at a temperature-dependent volumetric rate of Qoexp(-A/T), where Qo = 6 kWm-3, A = 85 K and T is the reactive mixture temperature in K....

Question