A student made the table shown to list some contact and non-contact forces.
Examples of Forces
Contact Forces Non-Contact Forces
The upward force applied by a couch on a student sitting on it The force applied by an electromagnet on a wire
The force applied by a student on a box to move it The force which opposes the motion of an object on a rough surface
Which statement best explains why the table is incorrect?
Normal force is a force acting at a distance.
The student applies a non-contact force on the box.
The electromagnet and wire have to be in contact to apply the force.
Frictional force acts between the object and the rough surface when they are in contact.
Answers: 3
Physics, 22.06.2019 00:20
2.22/3.33 points | previous answers tamucolphysmechl1 4.pre.002. ask your teacher my notes question part points submissions used on a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 2.40 m/s. (a) what are the magnitude and direction of the velocity of the red glider after the collision? magnitude 3.33 m/s correct: your answer is correct. direction correct: your answer is correct. (b) is this collision elastic?
Answers: 1
Physics, 22.06.2019 18:00
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A student made the table shown to list some contact and non-contact forces.
Examples of Forces
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