(a) How many dark matter particles are there in one cubic meter, if the average density of dark matter in our Milky Way galaxy is thought to be about 5 x 10 − 23 kg/m 3 .

Question

Want to see the full answer?

Answer 1

Question

Chapter 28, Problem 42QAP

To determine

(a)

How many dark matter particles are there in one cubic meter, if the average density of dark matter in our Milky Way galaxy is thought to be about 5 x 10−23kg/m3.

To determine

(b)

There are about 2.7 x 1025 molecules per cubic meter in the air around you and a total of about 10¹⁹ grains of sands on all the beaches on earth. Relatively speaking, which is more likely: finding a dark matter particle in the air around you, or finding one particular grain of sand somewhere on one of Earth's beaches?

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

a 500-n block is dragged along a horizontal surface by an applied force t at an angle of 30.0° (see figure). the coefficient of kinetic friction is uk = 0.400 and the block moves at a constant velocity. what is the magnitude of the applied force T in newtons?

Block A, with a mass of 10 kg, rests on a 30° incline. The coefficient of kinetic friction is 0.20. The attached string is parallel to the incline and passes over a massless, frictionless pulley at the top. Block B, with a mass of 15.0 kg. is attached to the dangling end of the string. What is the acceleration of Block B in m/s? show all steps please

Answer 2

Question

Chapter 28, Problem 42QAP

To determine

(a)

How many dark matter particles are there in one cubic meter, if the average density of dark matter in our Milky Way galaxy is thought to be about 5 x 10−23kg/m3.

To determine

(b)

There are about 2.7 x 1025 molecules per cubic meter in the air around you and a total of about 10¹⁹ grains of sands on all the beaches on earth. Relatively speaking, which is more likely: finding a dark matter particle in the air around you, or finding one particular grain of sand somewhere on one of Earth's beaches?

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 28, Problem 42QAP

To determine

(a)

How many dark matter particles are there in one cubic meter, if the average density of dark matter in our Milky Way galaxy is thought to be about 5 x 10−23kg/m3.

To determine

(b)

There are about 2.7 x 1025 molecules per cubic meter in the air around you and a total of about 10¹⁹ grains of sands on all the beaches on earth. Relatively speaking, which is more likely: finding a dark matter particle in the air around you, or finding one particular grain of sand somewhere on one of Earth's beaches?

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 28, Problem 42QAP

To determine

(a)

How many dark matter particles are there in one cubic meter, if the average density of dark matter in our Milky Way galaxy is thought to be about 5 x 10−23kg/m3.

To determine

(b)

There are about 2.7 x 1025 molecules per cubic meter in the air around you and a total of about 10¹⁹ grains of sands on all the beaches on earth. Relatively speaking, which is more likely: finding a dark matter particle in the air around you, or finding one particular grain of sand somewhere on one of Earth's beaches?

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 5

Chapter 28, Problem 42QAP

To determine

(a)

How many dark matter particles are there in one cubic meter, if the average density of dark matter in our Milky Way galaxy is thought to be about 5 x 10−23kg/m3.

To determine

(b)

There are about 2.7 x 1025 molecules per cubic meter in the air around you and a total of about 10¹⁹ grains of sands on all the beaches on earth. Relatively speaking, which is more likely: finding a dark matter particle in the air around you, or finding one particular grain of sand somewhere on one of Earth's beaches?

Answer 6

Chapter 28, Problem 42QAP

To determine

(a)

How many dark matter particles are there in one cubic meter, if the average density of dark matter in our Milky Way galaxy is thought to be about 5 x 10−23kg/m3.

Answer 7

Chapter 28, Problem 42QAP

To determine

(a)

How many dark matter particles are there in one cubic meter, if the average density of dark matter in our Milky Way galaxy is thought to be about 5 x 10−23kg/m3.

Answer 8

To determine

(b)

There are about 2.7 x 1025 molecules per cubic meter in the air around you and a total of about 10¹⁹ grains of sands on all the beaches on earth. Relatively speaking, which is more likely: finding a dark matter particle in the air around you, or finding one particular grain of sand somewhere on one of Earth's beaches?

Answer 9

To determine

(b)

There are about 2.7 x 1025 molecules per cubic meter in the air around you and a total of about 10¹⁹ grains of sands on all the beaches on earth. Relatively speaking, which is more likely: finding a dark matter particle in the air around you, or finding one particular grain of sand somewhere on one of Earth's beaches?

Answer 10

Expert Solution & Answer

Answer 11

Expert Solution & Answer

Answer 12

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 13

Ch. 28 - Prob. 1QAP Ch. 28 - Prob. 2QAP Ch. 28 - Prob. 3QAP Ch. 28 - Prob. 4QAP Ch. 28 - Prob. 5QAP Ch. 28 - Prob. 6QAP Ch. 28 - Prob. 7QAP Ch. 28 - Prob. 8QAP Ch. 28 - Prob. 9QAP Ch. 28 - Prob. 10QAP

(a) How many dark matter particles are there in one cubic meter, if the average density of dark matter in our Milky Way galaxy is thought to be about 5 x 10 − 23 kg/m 3 .

Solution Summary: The author calculates how many dark matter particles are there in one cubic meter.

Concept explainers

(a)

How many dark matter particles are there in one cubic meter, if the average density of dark matter in our Milky Way galaxy is thought to be about 5 x 10−23kg/m3.

Want to see the full answer?

Chapter 28 Solutions

(a) How many dark matter particles are there in one cubic meter, if the average density of dark matter in our Milky Way galaxy is thought to be about 5 x 10 − 23 kg/m 3 .

Solution Summary: The author calculates how many dark matter particles are there in one cubic meter.

Concept explainers

(a) How many dark matter particles are there in one cubic meter, if the average density of dark matter in our Milky Way galaxy is thought to be about 5 x 10−23kg/m3.

Want to see the full answer?

Chapter 28 Solutions

(a)

How many dark matter particles are there in one cubic meter, if the average density of dark matter in our Milky Way galaxy is thought to be about 5 x 10−23kg/m3.