The wheelbase on a truck is 2.4 m wide and the truck's center of mass is located along the vertical centerline of the truck and 2.0 m above the bottom of the tires
The truck is going around a banked turn, when it is forced to stop. What is the maximum slope that the bank can have such that the truck will not tip over?
A)
26°
B)
31°
C)
34°
D)
39°
E)
21°
B
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A hollow spherical planet is inhabited by people who live inside it, where the gravitational field is zero. When a very massive spaceship lands on the planet's surface, inhabitants find that the gravitational field inside the planet is
A) still zero. B) non-zero, directed toward the spaceship. C) non-zero, directed away from the spaceship.
When a steady voltage is across one-half as much resistance, the current
A) is half. B) remains the same. C) is doubled. D) is quadrupled.
An electron is accelerated from rest through a potential difference. After acceleration the electron has a wavelength of 880 nm
What is the potential difference responsible for the acceleration of the electron? (h = 6.626 × 10-34 J ? s, melectron = 9.11 × 10-31 kg, e = 1.6 10-19 C) A) 1.9 × 10-6 V B) 1.7 × 10-6 V C) 2.2 × 10-6 V D) 2.5 × 10-6 V
The atmospheric division that lies directly above the stratosphere is the ______________
Fill in the blank(s) with correct word