1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Artemon [7]
3 years ago
7

A rogue band of colonists on the moon declares war and prepares to use a catapult to launch large boulders at the earth. Assume

that the boulders are launched from the point on the moon nearest the earth. For this problem you can ignore the rotation of the two bodies and the orbiting of the moon.1) What is the minimum speed with which a boulder must be launched to reach the earth? Hint: The minimum speed is not the escape speed. You need to analyze a three-body system.2) Ignoring air resistance, what is the impact speed on earth of a boulder launched at this minimum speed?

Physics
1 answer:
insens350 [35]3 years ago
4 0

Answer:

  • 2.3 km/s
  • 11 km/s

Explanation:

The system is made up of three body system which are the boulder, earth and the moon also the sum of potential ad kinetic energies are assumed to be the same also note that the boulder was launched from the moon at an initial velocity

A ) Minimum speed of the boulder for it to reach the earth = 2.3 km/s

B) ignoring air resistance the impact speed on earth of a boulder launched at this minimum speed = 11 km/s

find attached the solution in details

You might be interested in
ANSWERRR PLEASEEEE!!!
GuDViN [60]

Answer:

50N to the left

Explanation:

I'll explain if you ask

6 0
2 years ago
Read 2 more answers
Which explains the information needed to calculate speed and velocity?
goblinko [34]

The second statement is the correct choice.  Don't make me type it out.

8 0
3 years ago
Read 2 more answers
An object rolls East at a steady speed of 12 m/s for 3 seconds. What distance did the object travel
horrorfan [7]
Answer: 36 meters.


Equation to find distance:
Speed x time
8 0
3 years ago
75 POINTS!!!!! Please help me! I need the correct answer! This is my second time posting this cause no one answered.
son4ous [18]
According to the article "Nuclear shapes" by Renee Lucas the nucleus's shape is mainly modified by vibrational and rotational features happening within the cell. According to the article if i read correctly "near closed shells spherical shapes prevail, while between closed shells the large number of valence nucleons in orbit with large particle angular momentum leads to nuclei with large deformations leading them to not only maintain its shape but also alloying it to work.
6 0
3 years ago
Read 2 more answers
A 20-N force acts on an object with a mass of 2.0kg. what is the objects acceleration?
ale4655 [162]

Answer:

10 m/s^2

Explanation:

Equation: F = ma.

a = acceleration

m = mass

F = force

Because we are trying to find acceleration instead of force we want to rearrange the equation to solve for a which is F/m = a.

F = 20

m = 2

a = ?

a = F/m

a = 20/2

a = 10 m/s^2

7 0
3 years ago
Read 2 more answers
Other questions:
  • A brick is dropped from 100m up. Find it's impact velocity and air time.
    11·1 answer
  • How to find yield strength of a load vs deflection?
    7·1 answer
  • Explain how we as humans can cause multiple problems in the food chain of the ocean
    5·1 answer
  • How is net force calculated when two forces act on an object in opposite directions?
    8·1 answer
  • Dock walls sometimes have pillars replaced with rubber car tyres.explain how this reduces the possibility of damage what a boat
    6·1 answer
  • Which of the following is not an intensive physical property?
    12·2 answers
  • A 10 kg block is pushed with a constant horizontal force of 20 n against a constant horizontal frictional force of 10 n. What is
    9·1 answer
  • An "energy bar" contains 26 g of carbohydrates. For the steps and strategies involved in solving a similar problem, you may view
    9·1 answer
  • 1.4 The inside of a sports hall measures 80 m
    9·1 answer
  • In each diagram I'm to label the reaction forces I'm a bit confused with the question
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!