Is it possible for an object to have a velocity of zero and a numerical value for acceleration? Justify your answer with an example


Yes, a ball thrown upward at its maximum height will have an instantaneous velocity
of zero but will still have an acceleration (due to gravity) of 980 cm s2 .

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

Characteristic peaks occur in an x-ray spectrum of an atom because electrons in the atom make transitions to lower energy levels after being bombarded with high energy electrons

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

Physics & Space Science

Which of the following is not associated with a cold front?

A) thunderstorms B) drop in air pressure C) gradually rising warm air D) clear skies behind the front

Physics & Space Science

Novae are more closely related to type II than to type I supernovae

Indicate whether the statement is true or false

Physics & Space Science