Physics, 26.10.2020 02:20 nandalabella06
A driver is speeding at 40 m/s when she slams on the brakes of her car. She skids for a distance of 67 meters before coming to a stop. What is the acceleration of the car? *
A. -11.94 m/s²
B. 0.3m/s²
C. 53600 m/s²
D. -16.42 m/s²
Answers: 2
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Which statement is true for light passing into a medium that is more optically dense than the first medium through which it past
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Physics, 22.06.2019 01:10
The 10-kg double wheel with radius of gyration of 125mm about o is connected to the spring of stiffness k = 600 n/m by a cord which is wrapped securely around the inner hub. if the wheel is released from rest on the incline with the spring stretched 225 mm, calculate the maximum velocity v of its center o during the ensuing motion. the wheel rolls without slipping
Answers: 1
Physics, 22.06.2019 11:50
Amoving electron has kinetic energy k1. after a net amount of work w has been done on it, the electron is moving one-quarter as fast in the opposite direction. (a) find w in terms of k1. (b) does your answer depend on the final direction of the electron's motion?
Answers: 2
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