This problem can be solved through the Inelastic Collision Formula:
mass1 x in.velocity1 + mass2 x in.velocity2 = mass1+mass2 (final velocity)
Substituting the values, we have:
0.40 kg x in.velocity1 + 0.40 kg x 0 m/s = 0.80 kg (8.0m/s)
Solving for the unknown initial velocity of the moving hockey puck we have:
in.velocity1 = (6.4 kgm/s - 0) / 0.40 kg
= 16 m/s
Answer:
Hamid
Explanation:
I got it right on my test
Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. And when the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere.
Answer:
the heat gained by the system (gas) is 60 J.
Explanation:
Given;
work done by the gas sample, W = 150 J
change in internal energy, ΔU = -90 J
Apply the first law of thermodynamic;
ΔU = Q - W
where;
Q is the heat gained by the system
From the equation above;
Q = ΔU + W
Q = -90 + 150
Q = 60 J
Therefore, the heat gained by the system (gas) is 60 J.
Answer:
C. valence electrons
Explanation:
Each dot is a valence electron.
Also, in my school, we called them Lewis Dot Structures.
