What is the mass of the star

Assignment Help Physics
Reference no: EM1357312

Q. Suppose you are 90 cm from a plane mirror. What area of the mirror is used to reflect the rays entering one eye from a point on the tip of your nose if your pupil diameter is 5.5 mm.

Q. Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. The orbital speed of the planets are determined to be 43.3 km/s and 58.6 km/s. The slower planet's orbital period is 7.60 years. (1) What is the mass of the star? (2) What is the orbital period of the faster planet, in years ?

Reference no: EM1357312

Questions Cloud

What is the maximum acceleration such as the block : A cardinal (Richmondena cardinalis) of mass 3.80×10-2 kg and a baseball of mass 0.146 kg have the same kinetic energy. What is the ratio of the cardinal's magnitude p_c of momentum to magnitude p_b of the baseball's momentum.
Journal entries-common stock reacquired : Record the following transactions of a company in a general journal form: Reacquired 8,000 of its own $10 par value common stock at $40 cash per share. The stock was originally issued at $15 per share.
Example of a stress or adjustment disorder : How would you define stress/adjustment disorders? What is an example of a stress/adjustment disorder? Is it possible to cure this disorder? If so, how? If not, why not?
Show non-verbal communication and facial expressions : Explain why is it important to be able to read facial expressions and how can you use the skill of reading facial expressions in the workplace and with working in teams?
What is the mass of the star : assume you are 90 cm from a plane mirror. What area of the mirror is used to reflect the rays entering one eye from a point on the tip of your nose if your pupil diameter is 5.5 mm.
Determine proportion of portfolio : Stock A has an expected return of 10 percent and a beta of 1.0. Stock B has a beta of 2. Portfolio P is a two-stock portfolio, where part of the portfolio is invested in Stock A and the other part is invested in Stock B.
Purchase method for consolidation entries : Pacific has the following account balances as of Feb 1. Western pays $2,020,000 in cash. An additional $20,000 is paid in direct combination costs. For each of the following accounts, determine what balance will be included in a Feb 1 consolidatio..
Cultural factors contribute to success of nanotechnology : What is the Nanotechnology, and identify the cultural factors that may contribute to the success or failure of this technology.
Explain average revenue and marginal revenue : Explain How can you tell whether the firm is operating in a market that is purely competitive and What relationship exists between average revenue and marginal revenue?

Reviews

Write a Review

Physics Questions & Answers

  Dielectric break down of mica is 40kv/mm

An empty sled of mass 25kg slides down a muddy hill with the constant of 2.40m/s. The slope of the hill is inclined at the angle of 15 degrees with the horizontal.

  Find the y coordinate of the systems center of mass

Two charged bodies exert a force of .145N on each other. If they are now moved so they are one fourth as far apart, what force is exerted.

  What is the frequency of vibration

A helicopter is ascending vertically with a speed of 5.45m/s. At a height of 141m above the Earth, a package is dropped from a window. How much time does it take for package to reach the ground.

  What point between the two wires are the contributions

If the mass of both weights is 225 gm, the first mass is located 20 north of east, the second mass is placed 20 south of east, and the transducer sensitivity is 0.5 volts/Newton, how large a voltage do you expect to measure? suppose the transducer..

  What is the magnitude of the acceleration

Two ocean liners, each with a mass of 40,000 metric tons, are moving on parallel courses, 92 m apart. What is the magnitude of the acceleration of one of the liners toward the other due to their mutual gravitational attraction? Care for the ships as ..

  Find the acceleration in this situation at the moment

A cricket ball is bowled at a speed of 144 km/hr. suppose the ball diameter is 70 mm and a drag coefficient 0.45, estimate the drag force in newtons which would be acting on the ball.

  Find out the maximum induced emf

An RL circuit consists of a switch, an emf source Eo, a 4 kΩ resistor, and a 5 H inductor. If the potential across resistor is 16 V 5 ms after switch is closed, find out the source emf, Eo.

  Find the velocity at the end of this time interval

A 0.75m diameter solid sphere may be rotated about an axis through its center by a torque of 11.5m*N which accelerates it uniformly from rest through a total of 180 revolutions in 16.0 s.What is the mass of the sphere.

  What are the speed and direction of the first ball

If the speed of the wave is 10 percent less in the organ than in the medium above, determine the depth of the tumor below the organ's surface.

  Write down an equation for the radial component

Write down an equation for the radial component

  Find out the time of fall

A 1110 N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960 N crate hangs from far end of beam.

  The greatest magnetic field strength for the wave

A transverse electromagnetic plane wave with a frequency of 2.84 MHz travels directly away from you (- z direction). At time t = 0, your magnetic field detector measures a magnetic field of 4.57 × 10-8 Tesla pointing down (- y direction) that further..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd