Several objects were called planets when they were originally discovered, but are no longer called planets

Indicate whether the statement is true or false


TRUE

Physics & Space Science

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The magnetic field of Mars was first detected by the Mars Global Surveyor

Indicate whether the statement is true or false

Physics & Space Science

Your friend says that the helium used to inflate balloons is a product of radioactive decay. Another friend says no way. With whom do you agree?

A) If helium were a product of radioactive decay, we would all be radioactive. Agree with the friend that says "no way." B) Radioactive decay produces alpha particles, not helium. Agree with the friend that says "no way." C) Your first friend is correct. Radioactive isotopes emit alpha particles which, in turn, capture electrons and become helium atoms. D) Helium is an element of the periodic table, not some product of any reaction. Agree with the friend that says "no way."

Physics & Space Science

Which stellar population has highly elliptical orbits?

a. Pop I extreme b. Pop I intermediate c. Pop II intermediate d. Pop II extreme

Physics & Space Science

Magma viscosity depends on the silica content and the ______________ of the magma

Fill in the blank(s) with correct word

Physics & Space Science