Massive stars form cores of ________ before exploding as Type II supernovae
Fill in the blank(s) with correct word
iron
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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
The greater the disturbance of the medium, the higher the amplitude of the wave
Indicate whether the statement is true or false
Which terrestrial planet(s) have magnetic fields?
A) Earth and Venus B) Earth only C) all of them do D) Earth and Mercury
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