subject

Physics, 01.07.2020 20:01 mrfluff14

How far away is a RR Lyrae variable star if it has a period of 0.5 days and a brightness of 2.3 x 10^-11 W/m^2?

ansver

Answers: 2

Show answers

Another question on Physics

question

Physics, 22.06.2019 02:20

Which changes of state do the labels represent? a: b: c:

Answers: 1

question

Physics, 22.06.2019 14:30

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates

Answers: 3

question

Physics, 22.06.2019 17:10

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up

Answers: 2

question

Physics, 22.06.2019 18:30

Two 2.0-cm-diameter disks face each other, 1.0 mm apart. they are charged to ±10 nc. what is the electric field strength between the disks? a proton is shot from the negative disk toward the positive disk. what launch speed must the proton have to just barely reach the positive disk?

Answers: 1

You know the right answer?

How far away is a RR Lyrae variable star if it has a period of 0.5 days and a brightness of 2.3 x 10...

Questions

question

Computers and Technology, 14.09.2019 05:30

Project selection always gets rid of some projects that are not useful for an organization....

question

Mathematics, 14.09.2019 05:30

Suppose your expectations regarding the stock price are as follows: hpr (including dividends) ending price $140 110 80 state of the market probabilit...

question

Mathematics, 14.09.2019 05:30

If f(x)=3x^3 then what is the area enclosed by the graph of the function, the horizontal axis, and vertical lines at x=2 and x=4...

question

Mathematics, 14.09.2019 05:30

An experiment was conducted to estimate the effect of smoking on the blood pressure of a group of 39 cigarette smokers. the difference for each partic...

question

Computers and Technology, 14.09.2019 05:30

Constructors are special methods included in class definitions. a. what is a constructor used for? b. how do constructors differ from other methods i...

question

Computers and Technology, 14.09.2019 05:30

In 4-bit two's complement representation, what is the binary encoding of the number -5? a) 1011 b) 1010 c) 1101 d) 0101...

question

Mathematics, 14.09.2019 05:30

You are considering the choice between investing $50,000 in a conventional 1-year bank cd offering an interest rate of 5% and a 1-year "inflation-plus...

question

Mathematics, 14.09.2019 05:30

Write the point- slope form of the equation of the line through the given point with the given slope through: (4, -4), slope = -1 &...

question

Computers and Technology, 14.09.2019 05:30

Is there a best method to select and prioritize projects?...

question

Computers and Technology, 14.09.2019 05:30

Should technology managers strategize technology projects?...

question

Computers and Technology, 14.09.2019 05:30

In c++, what happends when i add 1 to the rand_max then take rand() deivded by (rand_max+1)? if my purpose is to take out a random number within 0=<...

question

Computers and Technology, 14.09.2019 05:30

What is the difference between a database and a table? give two real life examples....

question

Computers and Technology, 14.09.2019 05:30

Using your web browser, you just sent a request for a web page. describe, on the destination web server computer, how your request is processed for it...

question

Computers and Technology, 14.09.2019 05:30

Which of these statements concerning the systems development life cycle is true? (1 point) (points : 1.5) designing the system is the first step in...

question

Computers and Technology, 14.09.2019 05:30

Write a vba code to implement bisection method and use your code to solve the root of the equation: 1 0.65x 1 x2 f(x) =-1.5x use initial trial all) =...

question

Computers and Technology, 14.09.2019 05:30

In what cases would you denormalize tables in your database?...

question

Computers and Technology, 14.09.2019 05:30

When analysts are hired specifically from outside the business to address information systems issues within a business, they are acting as supporting...

question

Computers and Technology, 14.09.2019 05:30

Ause case model describes what a system does without describing how the system does it. (points : 1.5) true false...

question

Computers and Technology, 14.09.2019 05:30

Which of these is not used by analysts when adopting case tools? (1 point) (points : 1.5) communicating more effectively with users expediting...

question

Computers and Technology, 14.09.2019 05:30

The sum of the binary numbers 0111+1001= 1 which is equivalent to in hex numeration system. a 10 f d...

More questions: Physics Another questions

Questions on the website: 13722363