The _____ marks the top of the sky above your head
A) north point
B) zenith
C) south point
D) nadir
B
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Three boxes in contact rest side-by-side on a smooth, horizontal floor
Their masses are 5.0-kg, 3.0-kg, and 2.0-kg, with the 3.0-kg box in the center. A force of 50 N pushes on the 5.0-kg box, which pushes against the other two boxes. (a) Draw the free-body diagrams for each of the boxes. (b) What magnitude force does the 3.0-kg box exert on the 5.0-kg box? (c) What magnitude force does the 3.0-kg box exert on the 2.0-kg box?
Light of wavelength 610 nm is incident on a slit 0.20 mm wide and the diffraction pattern is viewed on a screen that is 1.5 m from the slit. What is the width on the screen of the central maximum?
A) 0.34 cm B) 0.68 cm C) 0.92 cm D) 1.2 cm E) 1.5 cm
For an ideal gas with N and T held constant, an increase in volume will result in a(n) ______________ in pressure
Fill in the blank(s) with correct word
The Moon is accelerated toward the earth, so it is gradually getting closer to the earth
A) True B) False C) The moon is not accelerated toward the earth.