State Newton's second law of motion
What will be an ideal response?
If an object is acted on by a net force, it will experience an acceleration that is equal to the net force divided by the mass. Because the net force is a vector, the acceleration is also a vector. In fact, the direction of an object's acceleration is the same as the direction of the net force acting on it.
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A deuteron, with the same charge but twice the mass of a proton, moves with a speed of 6.0 × 10^5 m/s perpendicular to a uniform magnetic field of 0.20 T. Which of the paths described below would it follow? (qp = 1.6 × 10^-19 C and md = 3.34 × 10^-27 kg)
a. a circular path of 6.3-cm radius c. a circular path of 3.1-cm radius b. a circular path of 1.6-cm radius d. a straight line path
The physical disintegration and chemical decomposition of rock at or near Earth's surface is called
a. the disintegration chain. b. erosion. c. the decomposition cycle. d. weathering.
Which of the following is a result of Earth rotating on its axis?
A) The occurrence of day and night B) The lunar phases C) The yearly cycle D) The occurrence of solar eclipses
An ordinary glass lens forms an image by ____________ of light
a. reflection b. refraction c. diffraction