Answer:
Since the five forces applied are all in the same direction with the motion of the sled, to solve for the net force, add the five forces together. Therefore, the net force is 30 Newtons.
Explanation:
<span>T1 = 20.0 + 273 = 293.0 K
T2 = 8.00 + 273 = 281.0 K
use the combined gas law
p1V1/T1 = p2V2/T2
765 x 580/ 293.0 = 440 V2/ 281-0
V2 = 967 mL</span>
Answer:
Explanation:
It is given that,
Mass of the train car, 
Initial speed of the train car, 
Initial speed of the second car, 
After the collision, both cars stick together and move off with a speed of 4.00 m/s, V = 4 m/s
Let 
is the mass of the second car. It can be calculated using the conservation of momentum. In case of inelastic collision, after collision both objects move with a common speed.
So, the mass of the second car is 33833.33 kg. Hence, this is the required solution.
The correct answer of the given question above would be the first option. The statement that is true concerning atoms is that, atoms are made of even smaller substances called subatomic particles. Subatomic particles include neutrons, protons, electrons and atomic nuclei. Hope this answer helps.
