Consider the motion of a 1.00-kg particle that moves with potential energy given by
U(x) = (-2.00 J?m)/x + (4.00 J?m2)/x2. Suppose the particle is moving with a speed of 3.00 m/s when it is located at x = 1.00 m.
What is the speed of the object when it is located at x = 5.00 m?
A) 2.13 m/s B) 4.68 m/s C) 3.00 m/s D) 3.67 m/s
D
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In naming compounds, the prefix is used to
A) indicate the level of toxicity. B) categorize the compound. C) indicate the relative number of atoms. D) indicate the relative number of molecules.
A tire pressure gauge reads 30 psi when the atmospheric pressure is 14 psi. The net force on 2 square inches of the tire is 60 lbs
Indicate whether the statement is true or false
A proton is accelerated from rest through a potential difference of 150 V. It then enters a region of uniform magnetic field and moves in a circular path (radius = 12 cm). What is the magnitude of the magnetic field in this region?
A. 18 mT B. 12 mT C. 15 mT D. 22 mT E. 10 mT
Light of wavelength 500 nm is incident on a thin sheet of plastic film (n= 1.50 ) in air. What is the thinnest the sheet can be so that the reflected light from the surfaces undergoes destructive interference?
A) 50 nm B) 250 nm C) 83 nm D) 333 nm E) 167 nm