Massive stars form cores of ________ before exploding as Type II supernovae

Fill in the blank(s) with correct word


iron

Physics & Space Science

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A Trojan asteroid is caught within the Lagrange points of which planet?

a. Venus b. Earth c. Mars d. Jupiter e. Neptune

Physics & Space Science

A level pipe contains a nonviscous, incompressible fluid with a density 1200 kg/m3 that is flowing steadily. At one position within the pipe, the pressure is 300 kPa and the speed of the flow is 20.0 m/s

At another position, the pressure is 200 kPa. What is the speed of the flow at this second position? A) 567 m/s B) 16.2 m/s C) 32.9 m/s D) 23.8 m/s E) 186 m/s

Physics & Space Science

The greater the disturbance of the medium, the higher the amplitude of the wave

Indicate whether the statement is true or false

Physics & Space Science

Which terrestrial planet(s) have magnetic fields?

A) Earth and Venus B) Earth only C) all of them do D) Earth and Mercury

Physics & Space Science