A 1.0-kg ball is attached to the end of a 2.5-m string to form a pendulum. This pendulum is released from rest with the string horizontal. At the lowest point in its swing when it is moving horizontally, the ball collides elastically with a 2.0-kg block initially at rest on a horizontal frictionless surface. What is the speed of the block just after the collision?
a. 2.3 m/s
b. 4.7 m/s
c. 3.5 m/s
d. 3.0 m/s
e. 7.0 m/s
B
Physics & Space Science
You might also like to view...
In the equation PV = NkT, the k is known as
A) Avogadro's number. B) Boltzmann's constant. C) Planck's constant. D) the spring (compressibility) constant. E) compressibility.
Physics & Space Science
The baryon having which of the following quark contents is electrically neutral?
A. dds B. bbc C. uud D. ucs
Physics & Space Science
An electron is confined in a one-dimensional box (an infinite well)
Two adjacent allowed energies of the electron are 1.068 × 10-18 J and 1.352 × 10-18 J. What is the length of the box? (h = 6.626 × 10-34 J ? s, mel = 9.11 × 10-31 kg) A) 1.9 nm B) 0.93 nm C) 1.1 nm D) 2.3 nm
Physics & Space Science
Briefly explain how astronomers use the Zeeman effect to measure magnetic fields on the Sun
What will be an ideal response?
Physics & Space Science