Question

 How can we determine the existence of something we can't see? What is the evidence of dark matter and dark energy? How can we learn more about this phenomena? 

Expert Answer

Want to see the step-by-step answer?

See Answer

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

See Answer
*Response times vary by subject and question complexity. Median response time is 34 minutes and may be longer for new subjects.

Related Advanced Physics Q&A

Find answers to questions asked by student like you

Q: What is the best example of differential calculus in physics?

A: One of the best example of differential calculus in Physics is the Schrodinger equation in quantum m...

Q: What is a boson? Is a gluon the same thing? How do they work? What makes up electrons?

A: The following Standard model table differentiates between the Bosons and the Fermions on the basis o...

Q: A shopper pushes a grocery cart 22.0 m at constant speed on level ground, against a 31.0 N frictiona...

A: a)the work done by the fricional force is 

Q: Problem 1 |(a) Consider two kets |a) and |3). Suppose (a'|a), (a"|a), .. . and (a'|B), (a"|B), ... w...

A: a) The kets  |α> and  |β> can be expanded  in terms on their basis vectors as,

Q: It's a quantum mechanics problem.

A: The translational operator for finite spatial displacement is represented as,

Q: Physical Chemistry  What is the maximum number of phases that can be in mutual equilibrium in a 2 co...

A: Consider the number of components be C, the degree of freedom be F, that is equivalent to zero in mu...

Q: It's a quantum mechanics problem.

A: Expectation value of position can be written as,

Q: A ball is thrown straight up into the air. At what position is its kinetic energy a maximum? At what...

A: when a ball thrown upward, its speed will decrease at the rate of gravitational acceleration (Neglec...

Q: Just part a

A: a)The free body diagram  of the problem is illustrated below,