Physics, 21.08.2021 01:00, leslievramirez4074
In order to qualify for the finals in a racing event, a race car must achieve an average speed of 225 km/h on a track with a total length of 1550 m. If a particular car covers the first half of the track at an average speed of 244 km/h, what minimum average speed must it have in the second half of the event in order to qualify
Answers: 3
Physics, 21.06.2019 18:30, Rusven
An experiment is designed to test the relationship between the initial height of a basketball before it is dropped to the height of its rebound bounce. the height of the rebound bounce is measured using a scale positioned behind the ball. in the above experiment, which condition would not be controlled? a). the starting height of the ballb). the surface the ball bounces on c). the type of ball d). the method to measure the rebound height of the ball
Answers: 1
Physics, 22.06.2019 12:30, shanicar33500
Aboy with a mass 25 kg climbs into a small tree. he sits on a branch that is 2.o m above to the ground. what is his gravitational potential energy above the ground?
Answers: 1
Physics, 22.06.2019 14:20, jadahilbun01
A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.
Answers: 3
In order to qualify for the finals in a racing event, a race car must achieve an average speed of 22...
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