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1. ### momentum and K.E.

I think you are confused with elastic collision and inelastic collision . In elastic collision ,the kinetic enery...mention that which is elastic collision and which is not in your original answer.secondly...

2. ### Momentum- collision

... are of the same mass, their velocities are in perpendicular direction after collision . So, the second ball's velocity after collision is at an angle of -60.0 degrees with respect to the original line of first ball's motion. Then suppose that...

3. ### conservation of momentum

a. In a collision , momentum is conserved when there is no external force...the velocity of A relative to B before the collision is 4.21 m/s in the direction of N61.6*W. ii. As...

4. ### Why (3) is not correct?isn't infrared produced? Isn't black body radiation produced?

... object, not necessary gas, with a temperature emits electromagnetic... radiation so emitted is caused by collisions between molecules in the object, which possess thermal kinetic energy...

分類：科學及數學 > 物理學 2016年11月05日

5. ### photon-atom collision (to天同)

...excitation". The term "inelastic collision " is usually applied to the process of.... If a high energy photon ( in the x- or gamma ray range) collides with an atom, it may knock off an orbital electron...

6. ### Physics Q about momentum(急)

...the lowest position and collides with bob Q, P.E of bob P... of bob Q (∵18% of K.E. is lost during the collision ) K.E of bob Q=3.2x0.82=2...

7. ### momentum in two-dimension

...direction = (0.06 - 0.02√2) kg m/s In vertical direction = 0.02√2 kg m/s So the magnitude is 0.0423 kg m/s b) Initial...0.04 J Since the collision is elastic, energy given...

8. ### Earthquake Question----QUICK-----ANSWER IT IN ENGLISH (20)

.... In that same year in Feb, another earthquake .... 2. Afghanistan is located on Eurasian... is close to the boundary of crust collision with the Arabian Plate...

分類：科學及數學 > 地理學 2006年11月02日

9. ### What is rain? ( in English)

...before reaching the surface; it is one of the ways air can become... forms via collision with other rain drops or ice... drops range in size from oblate, pancake-like ...

分類：社會及文化 > 語言 2010年06月11日

10. ### HELP!!!!!!!!!急!!點解duration of

...movigng at high speed and the collisions are elastic. When a high...duration of contact of the molecule with the container wall is ... like an ideal gas. In a low density gas, the separation...