Hello, i just need the right answer without explanation. Thank you Question 11 (1 point) Which of the following statemen
Posted: Sun May 22, 2022 8:38 am
Hello, i just need the right answer without explanation. Thank
you
Question 11 (1 point)
Which of the following statements correctly describes the
relationship between an object's gravitational potential energy and
its height above the ground?
Question 11 options:
proportional to the square of the object's height above the
ground
directly proportional to the object's height above the
ground
inversely proportional to the object's height above the
ground
proportional to the square root of the object's height above the
ground
Question 12 (1 point)
Two identical marbles are dropped in a classroom. Marble A is
dropped from 1.00 m, and marble B is dropped from 0.25 m. Compare
the kinetic energies of the two marbles just before they strike the
ground.
Question 12 options:
Marble A has the same kinetic energy as marble B.
Marble A has 1.4 times as much kinetic energy as marble
B.
Marble A has 2.0 times as much kinetic energy as marble B.
Marble A has 4.0 times as much kinetic energy as marble B.
Question 13 (1 point)
A race car brakes and skids to a stop on the road. Which
statement best describes what happens?
Question 13 options:
The race car does work on the road.
The friction of the road does negative work on the race car.
The race car and the road do equal work on each other.
Neither does work on the other
Question 14 (1 point)
A worker lifts a box upward from the floor and then carries it
across the warehouse. When is he doing work?
Question 14 options:
while lifting the box from the floor
while carrying the box across the warehouse
while standing in place with the box
at no time during the process
Question 15 (1 point)
A baseball player drops the ball from his glove. At what moment
is the ball's kinetic energy the greatest?
Question 15 options:
when the baseball player is holding the ball
at the ball's highest point before beginning to fall
just before the ball hits the ground
the moment the ball leaves the baseball player's glove
you
Question 11 (1 point)
Which of the following statements correctly describes the
relationship between an object's gravitational potential energy and
its height above the ground?
Question 11 options:
proportional to the square of the object's height above the
ground
directly proportional to the object's height above the
ground
inversely proportional to the object's height above the
ground
proportional to the square root of the object's height above the
ground
Question 12 (1 point)
Two identical marbles are dropped in a classroom. Marble A is
dropped from 1.00 m, and marble B is dropped from 0.25 m. Compare
the kinetic energies of the two marbles just before they strike the
ground.
Question 12 options:
Marble A has the same kinetic energy as marble B.
Marble A has 1.4 times as much kinetic energy as marble
B.
Marble A has 2.0 times as much kinetic energy as marble B.
Marble A has 4.0 times as much kinetic energy as marble B.
Question 13 (1 point)
A race car brakes and skids to a stop on the road. Which
statement best describes what happens?
Question 13 options:
The race car does work on the road.
The friction of the road does negative work on the race car.
The race car and the road do equal work on each other.
Neither does work on the other
Question 14 (1 point)
A worker lifts a box upward from the floor and then carries it
across the warehouse. When is he doing work?
Question 14 options:
while lifting the box from the floor
while carrying the box across the warehouse
while standing in place with the box
at no time during the process
Question 15 (1 point)
A baseball player drops the ball from his glove. At what moment
is the ball's kinetic energy the greatest?
Question 15 options:
when the baseball player is holding the ball
at the ball's highest point before beginning to fall
just before the ball hits the ground
the moment the ball leaves the baseball player's glove