What temperature is required to fuse hydrogen?
A) thousands of Kelvin
B) millions of Kelvin
C) billions of Kelvin
D) trillions of Kelvin
E) any temperature, as long as gravity is strong enough
B) millions of Kelvin
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Thermal Expansion: A quantity of mercury occupies 400.0 cm3 at 0°C. What volume will it occupy when heated to 50°C? Mercury has a volume expansion coefficient of 180 × 10-6 K-1.
A. 450 cm3 B. 409.7 cm3 C. 403.6 cm3 D. 401.8 cm3
As soon as a bowling ball rolls off the edge of a table its horizontal component of velocity
A) decreases. B) remains constant. C) increases.
If a man wishes to use a plane mirror on a wall to view both his head and his feet as he stands in front of the mirror, the required length of the mirror:
a. is equal to the height of the man. b. is equal to one half the height of the man. c. depends on the distance the man stands from the mirror. d. depends on both the height of the man and the distance from the man to the mirror.
The softest mineral on the Mohs hardness scale is named ______________
Fill in the blank(s) with correct word