Physics, 03.10.2021 14:00 taleiayarbough4544
Một xe máy đi với vận tốc 54 km/h bỗng người lái xe thấy cái hố trước mặt cách xe 50m người ấy phanh gấp và đến sát cái hố thì dừng lại
a) tính gia tốc của xe
b) tính gia tốc hãm phanh
Answers: 1
Physics, 21.06.2019 17:50
In the image, the arrow is pointing to a celestial object. which attribute disqualifies the object from being a planet?
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Physics, 21.06.2019 21:50
Acar travels along a highway with a velocity of 24 m/s, west. the car exits the highway; and 4.0 s later, its instantaneous velocity is 16 m/s, 45° north of west. what is the magnitude of the average acceleration of the car during the four-second interval?
Answers: 2
Physics, 22.06.2019 03:30
The focal length of a relaxed human eye is approximately 1.7 cm. when we focus our eyes on a close up object, we can change the refractive power of the eye by about 16 diopters. (a) does the refractive power of our eyes increase or decrease by 16 diopters when we focus closely? explain. (b) calculate the focal length of the eye when we focus closely.
Answers: 3
Một xe máy đi với vận tốc 54 km/h bỗng người lái xe thấy cái hố trước mặt cách xe 50m người ấy phanh...
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