Suppose that the Sun shrank in size but that its mass remained the same. What would happen to the orbit of the Earth?
A) Earth's orbit would expand, and it would take more than one year to orbit the Sun.
B) The size of Earth's orbit would shrink, and it would take less than one year to orbit the Sun.
C) Earth's orbit would be unaffected.
D) Earth would change from a bound orbit to an unbound orbit and fly off into interstellar space.
C
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A hot luminous solid emits a ______________ spectrum, while a hot luminous gas produces a ______ spectrum
Fill in the blank(s) with correct word
A rock is projected from the edge of the top of a building with an initial velocity of 12.2 m/s at an angle of 53° above the horizontal. The rock strikes the ground a horizontal distance of 25 m from the base of the building. Assume that the ground is level and that the side of the building is vertical. How tall is the building?
a. 25.3 m b. 29.6 m c. 27.4 m d. 23.6 m e. 18.9 m
The principal difference between the terrestrial and jovian planets is the absence of ________ and helium close to the Sun
Fill in the blank(s) with correct word
A proton, moving east, enters a magnetic field. Because of this magnetic field the proton curves downward. We may conclude that the magnetic field must have a component
A) towards the south. B) towards the north. C) towards the west. D) upward. E) downward.