A drag racer starts from rest and accelerates at 8.0 m/s2 for the entire distance of 400 m (1/4 mile). What is the speed of the race car at the end of the run?
a. 32 m/s
c. 64 m/s
b. 40 m/s
d. 80 m/s
D
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First Law of Thermodynamics: A cylinder contains 1.50 moles of an ideal monatomic gas that is initially at a temperature of 317 K. If the gas gains 2730 J of heat and performs 780 J of work, what is its final temperature? (R = 8.31 J/mol ? K)
A. 359 K B. 421 K C. 526 K D. 687 K E. 756 K
In _________tempering of glass, ions larger than Si, such as K and Na, are introduced into the surface.
Fill in the blank(s) with the appropriate word(s).
An artillery shell is fired with an initial velocity of 300 m/s at 55.0° above the horizontal. It explodes on a mountainside 42.0 s after firing. If x is horizontal and y vertical, find the (x, y) coordinates where the shell explodes
Which of the following correctly describes what we mean by a great circle on the surface of the Earth?
A) any circle whose center is at the center of the Earth B) any circle of latitude C) any circle larger than 10,000 km in diameter D) a circle of longitude