Which of the following materials would you expect to have the lowest Young’s modulus?

(a) Aluminum metals
(b) Alumina ceramic
(c) Polyvinylchloride
(d) Rubber


(d) Rubber

Physics & Space Science

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The most massive main-sequence stars are the M stars

a. True b. False Indicate whether the statement is true or false

Physics & Space Science

Uncharged particles in an atom are called ________.

A. neutrinos B. protons C. positrons D. electrons E. neutrons

Physics & Space Science

In an RL circuit, which of the following is a possible magnitude of a phase angle?

a. 45° b. 315° c. 225° d. 135°

Physics & Space Science

A sled weighs 160 N. It is held in place on a frictionless 25.0° slope by a rope attached to a stake at the top; the rope is parallel to the slope. What is the normal force of the slope acting on the sled?

a. 145 N b. 67.6 N c. 177 N d. 379 N e. 74.6 N

Physics & Space Science