Energy sources that would be nonpolluting supplements to our energy are called ______________ fuels
Fill in the blank(s) with correct word
alternative
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Two masses m1 and m2, are separated by a distance r. The forces of attraction between the two masses is F.
a. if m1 is doubled, how does F change? b. if neither of the masses were changed, but r was doubled, how would F change? c. if r was not changed but both masses were doubled, how would F change? d. if r was halved and both masses were doubled, how would F change?
Molecular Speeds: The absolute temperature of a gas is T. In order to double the rms speed of its molecules, what should be the new absolute temperature?
A. 4T
B. 2T
C. T
D. 8T
E. 16T
The x and y components of a vector in a horizontal plane are 4.00 m and 3.00 m, respectively
(a) What is the magnitude of this vector? (b) What angle does this vector make with the positive +y-axis.
What is the valence shell?
A) It is the outermost shell of electrons in an atom. B) It is the shell of electrons in an atom that is the least reactive. C) It is the last partially filled orbital in an atom. D) It is the shell of electrons in element V (atomic no. = 23). E) It is the same as the orbital configuration.