A: Yes, if the less massive particle is the one initially at rest.
B: Yes, if the more massive particle is the one initially at rest.
C: Yes, if the two particles have the same mass.
D: No, kinetic energy is always lost is such a collision.
举一反三
- What are the two purposes of sleeping There are two purposes of sleeping: physical rest and rest.
- Block A has mass 1.00 kg and block B has mass 3.00 kg. The blocks collide and stick together on a level, frictionless surface.After the collision, the kinetic energy (KE) of block A is A: 1/9 the KE of block B B: 1/3 the KE of block B C: 3 times the KE of block B D: 9 times the KE of block B E: the same as the KE of block B
- At the opposite extreme(相反的极端) from a perfectly elastic collision(理想弹性碰撞) is one in which the colliding bodies(物体) stick(粘) together as would two lumps of putty(油灰块).
- (The more) kinetic (energy in) the particles of (a material), the (hottest) the material is.（） A: The more B: energy in C: a material D: hottest
- 123. Which one of the followings rules is not regarding two power-driven vessels meeting end or nearly end on so as to involve risk of collision? _______
内容
- 0
Which of the following statement is not true？ A: It is a quantum particle, behaving in some experiments like a classical particle and in some experiments like a classical wave. B: Its rest energy is zero. C: It carries energy in its motion. D: It carries momentum in its motion.
- 1
He has two assistants. One is from China and ________ is from Japan. A: others B: another the rest the othe C: the rest D: the other
- 2
The rate of a reaction depends on __________. A: collision frequency B: collision energy C: collision orientation D: all of the above E: none of the above
- 3
From a high angle overlooking the road, we watched the two cars racing toward one another, headed _________ a collision course.
- 4
One common issue in speaking activities is that students often produce one or two simple utterances in the foreign language and spend the rest of the time chatting in their ______ .