Two identical gliders slide toward each other on an air track. One moves at 1 m/s and the other at 2 m/s. They collide, stick, and moves at
A) 1/2 m/s.
B) 1/3 m/s.
C) 1/6 m/s.
D) 3/4 m/s.
E) 1.5 m/s.
Answer: A
You might also like to view...
Many of the Kuiper belt objects, including Pluto, are caught in a 3:2 resonance with Neptune
a. True b. False Indicate whether the statement is true or false
The Chandrasekhar limit tells us that
a. accretion disks can grow hot through friction. b. neutron stars of more than 3 solar masses are not stable. c. white dwarfs more massive than 1.4 solar masses are not stable. d. stars cannot travel through space too fast. e. stars with a mass less than 0.5 solar masses will not go through helium flash.
A main difference between gravitational and electric forces is that electric forces
A) attract. B) repel or attract. C) obey the inverse-square law. D) act over shorter distances. E) are weaker.
A polymer blend will be 75 % PVC and 25 % vol fraction LDPE, to provide additional ductility to the PVC. Estimate the elastic modulus, tensile strength, and elongation to failure of the proposed blend if the LDPE and PVC have the following properties:
