You walk 53 m to the north, then you turn 60° to your right and walk another 45m Determine the direction of your displacement vector. Express your answer as an angle relative to east
A) 57° N of E B) 50° N of E C) 69° N of E D) 63° N of E
D
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Cities have higher rates of lung disease than rural areas
What will be an ideal response?
The main lens or mirror of a telescope is called the ____________________
Fill in the blank(s) with correct word
Which of the following best describes what would happen if a 1.5 solar mass neutron star, with a diameter of a few kilometers, were suddenly to appear in your hometown?
A) It would rapidly sink to the center of the Earth. B) It would crash into the Earth, throwing vast amounts of dust into the atmosphere which in turn would cool the Earth. Such a scenario is probably what caused the extinction of the dinosaurs. C) The combined mass of the Earth and the neutron star would cause the neutron star to collapse into a black hole. D) The entire mass of the Earth would end up as a thin layer, about 1 cm thick, over the surface of the neutron star. E) It would crash through the Earth, creating a large crater, and exit the Earth on the other side.
The moon and visible planets are always within a few degrees of the ecliptic
Indicate whether the statement is true or false