Physics, 24.12.2019 02:31 ddmorse2015owug6f
A55-kg person on skis starts from rest down a hill sloped at 35° from the horizontal. the coefficient of friction between the skis and the snow is 0.12. after the skier had been moving for 5.0 s, the friction of the snow suddenly increased and made the net force on the skier zero. what is the new coefficient of friction?
Answers: 3
Physics, 22.06.2019 10:00
Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?
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Physics, 22.06.2019 12:30
Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.
Answers: 1
Physics, 22.06.2019 19:00
The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?
Answers: 3
A55-kg person on skis starts from rest down a hill sloped at 35° from the horizontal. the coefficien...
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