A 26.0-N crate starting at rest slides down a rough 4.8-m-long ramp, inclined at 21.0° with the horizontal. 18 J of energy is lost to friction. What will be the speed of the crate at the bottom of the incline?
a. 27.1 m/s
b. 5.81 m/s
c. 6.36 m/s
d. 4.49 m/s
d
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The ________ theory describes the origin of the planets as having been formed by accretion of small particles into progressively larger and larger bodies
Fill in the blank(s) with correct word
The impossibility of reaching a temperature of absolute zero is incorporated in
a. the third law of thermodynamics. b. the first law of thermodynamics. c. the second law of thermodynamics. d. an increase in entropy.
One disadvantage of dispersion-strengthened metals at high temperatures is that the dispersion and the matrix are not in _________with each other, and as a result the matrix and dispersion may react with each other.
Fill in the blank(s) with the appropriate word(s).
An RC circuit is connected across a DC voltage source through an open switch. As soon as the switch is closed, the capacitor charges linearly as a function of time
Indicate whether the statement is true or false