In the figure, a 3.50 g ice flake is released from the edge of a hemispherical bowl whose radius r is 22.4 cm. The flake-bowl contact is frictionless. (a) How much work is done on the flake by the gravitational force during the flake's descent to the bottom of the bowl? (b) What is the change in the potential energy of the flake-Earth system during that descent? (c) If that potential energy is taken to be zero at the bottom of the bowl, what is its value when the flake is released? (d) If, instead, the potential energy is taken to be zero at the release point, what is its value when the flake reaches the bottom of the bowl? Ice flake (a) Number i Units (b) Number i Units (c) Number i Units (d) Number i Units

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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In the figure, a 3.50 g ice flake is released from the edge of a hemispherical bowl whose radius r is 22.4 cm. The flake-bowl contact is
frictionless. (a) How much work is done on the flake by the gravitational force during the flake's descent to the bottom of the bowl?
(b) What is the change in the potential energy of the flake-Earth system during that descent? (c) If that
potential energy is taken to be zero at the bottom of the bowl, what is its value when the flake is released? (d) If, instead, the
potential energy is taken to be zero at the release point, what is its value when the flake reaches the bottom of the bowl?
Ice
flake
(a) Number
i
Units
(b) Number
i
Units
(c) Number
Units
(d) Number
i
Units
>
Transcribed Image Text:In the figure, a 3.50 g ice flake is released from the edge of a hemispherical bowl whose radius r is 22.4 cm. The flake-bowl contact is frictionless. (a) How much work is done on the flake by the gravitational force during the flake's descent to the bottom of the bowl? (b) What is the change in the potential energy of the flake-Earth system during that descent? (c) If that potential energy is taken to be zero at the bottom of the bowl, what is its value when the flake is released? (d) If, instead, the potential energy is taken to be zero at the release point, what is its value when the flake reaches the bottom of the bowl? Ice flake (a) Number i Units (b) Number i Units (c) Number Units (d) Number i Units >
In the figure, a frictionless roller coaster car of mass m = 811 kg tops the first hill with speed vo = 16.0 m/s at height h = 41.0 m. What
is the speed of the car at (a) point A, (b) point B, and (c) point C? (d) How high will the car go on the last hill, which is too high for it to
cross? Use g=9.81 m/s?.
First
hill-
B
h/2
(a) Number
i
Units
(b) Number
i
Units
(c) Number
i
Units
(d) Number
i
Units
>
>
Transcribed Image Text:In the figure, a frictionless roller coaster car of mass m = 811 kg tops the first hill with speed vo = 16.0 m/s at height h = 41.0 m. What is the speed of the car at (a) point A, (b) point B, and (c) point C? (d) How high will the car go on the last hill, which is too high for it to cross? Use g=9.81 m/s?. First hill- B h/2 (a) Number i Units (b) Number i Units (c) Number i Units (d) Number i Units > >
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