Physics, 19.08.2019 18:10 mollycompton04
Under favorable circumstances, including reaction time, a motor vehicle with good brakes going 50 miles per hour can be stopped within: a. about 133 feet b. about 229 feet c. about 55 feet d. about 10 feet
Answers: 2
Physics, 21.06.2019 18:00, hcortez8846
Which statement best explains why an object weight less on mercury than it does on earth
Answers: 1
Physics, 22.06.2019 13:00, caleb1009
At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.
Answers: 3
Physics, 22.06.2019 13:10, pearlvldz
The atoms in a nickel crystal vibrate as harmonic oscillators with an angular frequency of 2.3 × 1013 rad/s. the mass of a nickel atom is 9.75 × 10-26 kg. what is the difference in energy between adjacent vibrational energy levels of nickel? (h = 6.626 × 10-34 j • s, , 1 ev = 1.60 × 10-19 j)
Answers: 2
Under favorable circumstances, including reaction time, a motor vehicle with good brakes going 50 mi...
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