Simple Pendulum: Suppose you want to set up a simple pendulum with a period of 2.50 s. How long should it be(a) on Earth, at a location where g = 9.80 m/s2?(b) on a planet where g is 5.00 times what it is on Earth?
What will be an ideal response?
(a) 1.55 m (b) 7.76 m
Physics & Space Science
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The flow of electrons in an electric circuit move by
A) bumping other electrons. B) colliding with molecules. C) interacting with an established electric field. D) none of the above
Physics & Space Science
A projectile is thrown from the top of a building with an initial velocity of 30 m/s in the horizontal direction. If the top of the building is 30 m above the ground, how fast will the projectile be moving just before it strikes the ground?
a. 35 m/s b. 39 m/s c. 31 m/s d. 43 m/s e. 54 m/s
Physics & Space Science
What is meant by the term free surface of a fluid?
What will be an ideal response?
Physics & Space Science
If the surface area of a sphere is increased by 16%, by what percentage has the radius been changed?
A. 16% B. 8.1% C. 7.7% D. 12%
Physics & Space Science