In a(n) _____________reaction, liquid transforms to two solids ? and ?.
Fill in the blank(s) with the appropriate word(s).
eutectic
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Rotational velocity outside the visible boundary of our Galaxy is ________ than would be expected on the basis of observed stars and gas, indicating the presence of ________.
A. higher; dark matter B. smaller; white dwarfs C. zero; a vacuum D. lower; gas
Force is a vector quantity
Indicate whether the statement is true or false
An object's "momentum" is defined as
A) its force time is velocity. B) its mass times its speed. C) its force times its distance. D) its mass times its velocity. E) its weight times its speed.
An auditorium has dimensions 10 m × 10^ m × 60 m. How many moles of air fill this volume at one atmosphere and 0°C?
a. 2.7 × 10^2 b. 2.7 × 10^4 c. 2.7 × 10^3 d. 2.7 × 10^5 e. 2.7 × 10^6