subject
Physics, 18.10.2021 09:50 cshopholic4921

2. Hãy biểu diễn các lực sau đây tác dụng lên cùng một quyển sách được đặt nằm yên trên bàn. của một vật có khối lượng 30 kg. Với tỉ xích 1 cm ứng với 10 N.
a. Lực kéo FK tác dụng vào điểm A của quyển sách có phương nằm ngang, chiều từ phải sang trái và có cường độ 45 N.
b. Trọng lực P
của vật. Cho biết vật có khối lượng 2 kg.
c. Phản lực Q của mặt bàn cân bằng với trọng lực P
.

ansver
Answers: 3

Another question on Physics

question
Physics, 21.06.2019 22:00
1. consider the case in which air fills air shocks on a truck trailer. the pressure in the shocks is 2 mpa. the temperature is 300 k. the diameter of the shock piston is 10 cm and the initial length of the cylindrical cavity containing the compressed air is 40 cm. a. the truck is gradually loaded over a period of a day in a static setting. the temperature is held constant for the atmosphere and thus for the gas shock. calculate the compressibility of the air in the shock for this condition when the truck is initially being loaded. b. if the shocks were loaded in a dynamic setting by driving over bumps, what would be the compressibility? state your assumption. c. what is the initial load on the shock if the shock is in an atmospheric 100 kpa? d. if the shock is compressed using the process described in part a, and the air shock compressed air cavity length decreases to 20 cm, what is the additional load applied to the shock?
Answers: 2
question
Physics, 21.06.2019 22:50
An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?
Answers: 3
question
Physics, 22.06.2019 04:40
Argon is adiabatically compressed from an initial volume of 16 liters to a final volume of 2 liters. by what factor do the following quantities change? do they increase or decrease? (a) the rms speed (b) the thermal energy of the gas (c) the molar specific heat cv (d) the pressure
Answers: 3
question
Physics, 22.06.2019 05:30
Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.
Answers: 1
You know the right answer?
2. Hãy biểu diễn các lực sau đây tác dụng lên cùng một quyển sách được đặt nằm yên trên bàn. của m...
Questions
Questions on the website: 13722362