sticking your fingers into a wall socket will not bring you into direct contact with an electrical current. true or false
2 answers:
You might be interested in
Answer:
V = 1.1 m/s
Explanation:
given,
mass of railroad car 1 , m = 30,000. kg
travelling at the speed , u = 2.2 m/s
mass of car 2, M = 30,000. kg
initial speed, u' = 0 m/s
final speed of the car after collision, V = ?
using conservation of momentum
m u + M u' = (M+m)V
30000 x 2.2 + 0 = (30000 + 30000) V
60000 V = 66000
V = 1.1 m/s
he velocity of the two cars is equal to V = 1.1 m/s
The orbital speed of the space shuttle is 2.12 x 10⁴ m/s.
<h3>Orbital speed of the space shuttle</h3>The orbital speed of the space shuttle is calculated as follows;
where;
- G is gravitational constant
- M is mass of the Earth
- r is the distance from the center point of the planet
Thus, the orbital speed of the space shuttle is 2.12 x 10⁴ m/s.
Learn more about orbital speed here: brainly.com/question/22247460