Physics, 13.04.2021 22:10 chloedonyes
An elevator must lift 9810 N a distance of 100 m at a velocity of 4 m/s. What is the average power the elevator exerts during this trip?
Answers: 1
Physics, 21.06.2019 17:20
An object thrown vertically upward from the surface of a celestial body at a velocity of 36 m/s reaches a height of sequalsminus0.9tsquaredplus36t meters in t seconds. a. determine the velocity v of the object after t seconds. b. when does the object reach its highest point? c. what is the height of the object at the highest point? d. when does the object strike the ground? e. with what velocity does the object strike the ground? f. on what intervals is the speed increasing?
Answers: 1
Physics, 21.06.2019 19:00
An object is located 30.0 cm from a concave mirror. the focal length is 15.0 c,. what is the image distance? a. 30.0 cm b. -10 cm c. 10.0 cm d. -30.0 cm
Answers: 1
Physics, 21.06.2019 22:30
Distinguish between a transverse wave and a longitudinal wave.
Answers: 1
Physics, 22.06.2019 02:30
Which of the following are properties of mechanical waves? check all that apply ⭕️ particles of the medium move back and fourth, but do not move with the wave. ⭕️ the particles of the medium always move parallel to the wave motion. ⭕️ wave motion begins with a disturbance in the medium. ⭕️ waves transport energy from a source outward, away from the source.
Answers: 2
An elevator must lift 9810 N a distance of 100 m at a velocity of 4 m/s. What is the average power t...
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