Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
1. It is believed that a ring of old stars around the Milky Waymight have been formed by a previous merger of twoGalaxies.A TrueB False
2. What name is given to a galaxy with a smooth distribution ofbrightness and a round, spherical shape?A SBaB SaC E0D E7
3. There is little or no interstellar dust or gas in which of thefollowing galaxy types?A Spirals.B Barred spirals.C Ellipticals.D Irregulars.
4. Dwarf galaxies contain only dwarf stars.A TrueB False
5. According to the Hubble classification scheme, an E3galaxyA has a shortercentral bar in its disk than an E5 galaxy.B has more tightly woundspiral arms than an E5 galaxy.C is rounder-looking thanan E5 galaxy.D is flatter-looking thanan E5 galaxy.
6. Who developed the "tuning-fork" diagram connecting thedifferent shapes of elliptical and spiral galaxies?A EdwinHubble.B StephenHawking.C EjnarHertzsprung.D MartinSchwarzschild.
A light ray is propagating in a crystal where its wavelengthis 531 nm. It strikes theinterior surface of the crystal with an incidence angleof 30°, Find the light's frequency
A 1.5 kg ball is thrown straight up with aninitial speed of 12m/s. What will be the potential energy of the ball when it reaches its max. height
Suppose that a NASCAR race car is moving tothe right with a constant velocity of +97 m/s. What is the averageacceleration of the car? Twelve seconds later,the car is halfway around the track and traveling in the oppositedirection with the same speed...
A small block having mass m sits on a uniform disk that has radius R=0.5m. What is the initial angular velocity of the disk
the intrinsic magnetic dipole moment of the electron has magnitude 9.33 x 10-24 a middotm2. in other words the electron
Earth's radius is 6.37 106 m. Illustrate by what percent does the Moon's gravitational pull on you increase?
A 10.0 kg object oscillates at the end of a vertical spring that has a spring constant of 1.90 104 N/m. Calculate the frequency of the dampened oscillation
A system of 1506 particles, each ofwhich is either an electron or a proton, has a net charge of-4.704 10-17 C. What is the mass of this system
A simple ppendulum of length 2.5m makes 5.0 complete swings in 16s.What is the acceleration of gravity at the location of the pendulum
a 2.40-cm-thick wood floor covers a 4.0m x 5.5m room.the subfloor on which the flooring sits is at a temperature of
A uniform ladder 10.0 m long is leaning against a frictionless wall at an angle of 60.0° above the horizontal. compute the magnitude of the frictional force exerted on the ladder
Suppose that earth was formed as molten rock at some very high temperatures. Estimate the time for the earth to cool to 300 K.
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd