Physics, 17.07.2019 05:40 lilobekker6976
Two 25 kg children are sitting on a merry-go-round that is rotating at 0.10 rad/s. if one child is 1.0 m from the center and the other is 1.5 m from the center, what is their combined angular momentum?
Answers: 1
Physics, 21.06.2019 20:50
Aball is thrown upward in the air, and its height above the ground after t seconds is h ( t ) = 57 t ā 16 t 2 feet. find the time t when the ball will be traveling upward at 14.25 feet per second.
Answers: 1
Physics, 22.06.2019 06:00
Which of the following changes will result in a stronger electromagnet? a. using fewer coils of wire b. using a higher voltage c. using a shorter nail d. using a longer wire
Answers: 1
Physics, 22.06.2019 18:00
Astone is thrown with a speed v0 and returns to earth, as the drawing shows. ignore friction and air resistance, and consider the initial and final locations of the stone. which one of the following correctly describes the change Ī“pe in the gravitational potential energy and the change Ī“ke in the kinetic energy of the stone as it moves from its initial to its final location? options a.Ī“pe = 0 j and Ī“ke = 0 j b.Ī“pe is positive and Ī“ke is negative c.Ī“pe = 0 j and Ī“ke is positive d.Ī“pe is negative and Ī“ke is positive e.Ī“pe = 0 j and Ī“ke is negative
Answers: 3
Physics, 22.06.2019 23:30
An astronaut on the moon throws a baseball upward. the astronaut is 6 ft, 6 in. tall, and the initial velocity of the ball is 3030 ft per sec. the height s of the ball in feet is given by the equation s equals negative 2.7 t squared plus 30 t plus 6.5s=ā2.7t2+30t+6.5, where t is the number of seconds after the ball was thrown. complete parts a and b.
Answers: 2
Two 25 kg children are sitting on a merry-go-round that is rotating at 0.10 rad/s. if one child is 1...
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