Physics, 11.10.2021 06:00 phillipfruge3
Một vật có khối lượng m = 10,0 kg đang nằm yên trên mặt phẳng ngang thì chịu tác dụng của lực kéo F⃗⃗ theo phương tạo với mặt ngang một góc = 300 như hình vẽ. Cho biết hệ số ma sát trượt giữa vật và mặt phẳng ngang là = 0,2. Lấy gia tốc rơi tự do g = 10 m/s2 . Để vật trượt với gia tốc a = 0,50 m/s2 thì độ lớn của lực F phải bằng bao nhiêu?
Answers: 1
Physics, 22.06.2019 00:00
A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?
Answers: 1
Physics, 22.06.2019 07:00
The table below shows the acceleration of gravity on different bodies in the solar system. on which body would a 10 kg lamp has the most gravitational potential energy when lifted to a height of 2 m? a. earth b. mars c. neptune d. uranus
Answers: 1
Physics, 22.06.2019 10:20
Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)
Answers: 2
Physics, 22.06.2019 17:20
Which is not true of the intertropical convergence zone? a) it features heavy precipitation b) it's where the trade winds collidec) it's a high-pressure zone with sinking air d) it is also known as the doldrums
Answers: 2
Một vật có khối lượng m = 10,0 kg đang nằm yên trên mặt phẳng ngang thì chịu tác dụng của lực kéo F⃗...
History, 16.08.2021 02:30
Mathematics, 16.08.2021 02:30
Mathematics, 16.08.2021 02:30
History, 16.08.2021 02:30
Mathematics, 16.08.2021 02:30
Mathematics, 16.08.2021 02:30
History, 16.08.2021 02:30
Mathematics, 16.08.2021 02:30
English, 16.08.2021 02:30
Computers and Technology, 16.08.2021 02:30
Mathematics, 16.08.2021 02:30