Physics

Physics, 28.10.2019 20:31, lllizzas

Avehicle moves on a straight track 900 meters in length. the maximum speed it can develop in the first half of the track is 30m / s, and the next half is 90m / s. the vehicle traveled this track in the shortest possible time. calculate the average speed of the furniture.

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Mathematics, 21.06.2019 12:30, trapqueenriz12

Arunning track in the shape of an oval is shown. the ends of the track form semicircles. a running track is shown. the left and right edges of the track are identical curves. the top and bottom edges of the track are straight lines. the track has width 56 m and length of one straight edge 130 m. what is the perimeter of the inside of the track? (π = 3.14) 260.00 m 347.92 m 372.00 m 435.84 m

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Mathematics, 08.07.2019 22:10, yachtboy1917

Arunning track in the shape of an oval is shown. the ends of the track form semicircles. a running track is shown. the left and right edges of the track are identical curves. the top and bottom edges of the track are straight lines. the track has width 62 m and length of one straight edge 100 m what is the perimeter of the inside of the track? (π = 3.14)

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Mathematics, 15.07.2019 12:30, s108870

Arunning track in the shape of an oval is shown. the ends of the track form semicircles. a running track is shown. the left and right edges of the track are identical curves. the top and bottom edges of the track are straight lines. the track has width 62 m and length of one straight edge 100 m what is the perimeter of the inside of the track? (π = 3.14) 162.00 m 324.00 m 394.68 m 589.36 m

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Mathematics, 12.09.2019 00:30, genyjoannerubiera

In order to qualify for finals in racing event,a race car must achieve an average speed of 250km/hr on a track with a total length of 1600m.if a particular car covers the first half of the track at an average speed of 230km/hr,what minimum average speed must it have in the second half of the track in order to qualify?

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