A ball is dropped from a height of 8m above the ground. The velocity of the ball when reaching the ground is O a. -9.8 m/s O b. 8.85 m/s O c. 12.52 m/s O d. -12.52 m/s Clear my choice

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Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A ball is dropped from a height of 8m above the ground. The velocity of the ball when reaching the ground is
of
a.
-9.8 m/s
O b. 8.85 m/s
tion
Oc 12.52 m/s
O d. -12.52 m/s
Clear
my
choice
The distance between two objects is 2 m. If the distance is changed to 1m, the gravitational force between the objects
O a.
decreases by 1/4th
O b. increases 4 times
Oa decreases by half
O d.
s doubled
Transcribed Image Text:Reports e-Services Academic Departments ETC - CIMS A ball is dropped from a height of 8m above the ground. The velocity of the ball when reaching the ground is of a. -9.8 m/s O b. 8.85 m/s tion Oc 12.52 m/s O d. -12.52 m/s Clear my choice The distance between two objects is 2 m. If the distance is changed to 1m, the gravitational force between the objects O a. decreases by 1/4th O b. increases 4 times Oa decreases by half O d. s doubled
e-Services -
Academic Departments
ETC -
CIMS -
Objects with greater
have greater inertia.
O a. speed
mass
O c.
force
O d. friction
The gravitational potential energy of a 700kg elevator at the top of a building, 350m above the ground level is
O a.
0,245MJ
Ob. 2.401GJ
Od 2401MJ
O d. 2401kJ
Transcribed Image Text:e-Services - Academic Departments ETC - CIMS - Objects with greater have greater inertia. O a. speed mass O c. force O d. friction The gravitational potential energy of a 700kg elevator at the top of a building, 350m above the ground level is O a. 0,245MJ Ob. 2.401GJ Od 2401MJ O d. 2401kJ
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