So please review them before you begin.
A solid ball of mass M and radius r sits at rest at th...
Physics, 17.04.2020 05:22 fantasticjrod
So please review them before you begin.
A solid ball of mass M and radius r sits at rest at the top of a hill of height H leading to
a circular loop-the-loop. The center of mass of the ball will move in a circle of radius R if it
goes around the loop. Recall that the moment of inertia of a solid ball is Iball = 2MR2. 5
a) Find the minimum height Hmin for which the ball barely goes around the loop stay- ing on the track at the top, assuming that it rolls without slipping the entire time independent of the normal force.
b) where it was a block that slid around a frictionless track? Does this answer make sense? If it is higher, where did the extra potential energy go? If it is lower, where did the extra kinetic energy come from?
c) Discussion question for recitation: The assumption that the ball will roll around the track without slipping if released from this estimated minimum height is not a good one. Why not?
Answers: 2
Physics, 21.06.2019 21:40
Since the investigative question has two variables, you need to focus on each one separately. thinking only about the first part of the question, mass, what might be a hypothesis that would illustrate the relationship between mass and kinetic energy? use the format of "if…then…because…” when writing your hypothesis.
Answers: 1
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The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6−0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.
Answers: 2
Physics, 22.06.2019 15:50
How many neutrons does plutonium -196 with an atomic number of 78.
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