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telo118 [61]
3 years ago
9

Ví dụ 1 : Hai vật xuất phát từ A và B cách nhau 400m chuyển động cùng chiều theo hướng từ A đến B. Vật thứ nhất chuyển động đều

từ A với vận tốc 36km/h. Vật thứ hai chuyển động đều từ B với vận tốc 18km/h. Sau bao lâu hai vật gặp nhau ? Gặp nhau chỗ nào ?
Physics
1 answer:
Mashcka [7]3 years ago
8 0

Answer:

Ví dụ 1 : Hai vật xuất phát từ A và B cách nhau 400m chuyển động cùng chiều theo hướng từ A đến B. Vật thứ nhất chuyển động đều từ A với vận tốc 36km/h. Vật thứ hai chuyển động đều từ B với vận tốc 18km/h. Sau bao lâu hai vật gặp nhau ? Gặp nhau chỗ nào

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10/12
grandymaker [24]
25mph I hope this helps and sorry it took so long
7 0
3 years ago
What are some of the impact of modern communication in our socio-economic life?​
givi [52]

Answer:

Modern communication has made our socio-economic life so much better and easier. It is easier now to communicate with someone far away on another continent and even do business and shop online without been physically present at the other end. One of the most important modern means of communication is the internet which has turned the world to a small global village.

6 0
3 years ago
Why is it possible to see yourself in a object that reflects light, but not in one that scatters light
dedylja [7]
I think it is because in objects that reflect light, the light is bounces/reflects off the object in one direction and one angle, and hits your eye, causing it to be processed as a reflection of yourself in your brain. But in one that scatters light, it bounces/reflects off in many different directions. Due to this, your brain may not process it as a reflection.
Here is a little bit of extra info:
https://www.sciencelearn.org.nz/resources
7 0
3 years ago
Physics question: show work and circle answer
ruslelena [56]

Answer:

F = 2 [N], choose option (2)

Explanation:

The principle of impulse is defined by the following expression:

Impulse = Force * Time

Force = force acting [N] or [kg*m/s^s]

Time = time during the impulse [s]

Replacing:

Impulse = 10[kg*m/s^2] * 10 [s]

Impulse = 0,1 [kg*m/s]

Now with this impulse, we can find the force for the new time.

F = Impulse/Time

F = 0.1[kg*m/s] / 0.05[s]

F = 2 [N]

5 0
3 years ago
The distance (x) in meters travelled by a particle is related to time (t) in seconds by the equation of motion x = 10t + 4t². Wh
Kruka [31]

Answer:

Correct answer: V₀ = 10 m/s

Explanation:

Depending on time and acceleration, the distance formula is:

D = V₀t + a t²/2

in accordance with the given formula we conclude that the

initial velocity is V₀ = 10 m / s

God is with you!!!

5 0
3 years ago
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