Mathematics

Mathematics, 14.07.2019 22:30, WowOK417

calculate the speed a car moves 25 km in 20 minutes.( give answer in km/h)

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Physics, 12.07.2019 18:10, Senica

Acar moving with an initial speed v collides with a second stationary car that is 51.7 percent as massive. after the collision the first car moves in the same direction as before with a speed that is 35.3 percent of the original speed. calculate the final speed of the second car. give your answer in units of the initial speed (i.e. as a fraction of v).

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Physics, 16.07.2019 21:40, SMILEDOG

Acar moving with an initial speed v collides with a second stationary car that is 46.7 percent as massive. after the collision the first car moves in the same direction as before with a speed that is 31.8 percent of the original speed. calculate the final speed of the second car. give your answer in units of the initial speed (i.e. as a fraction of v).

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Physics, 30.08.2019 20:30, aljdones

The mass of the earth mis-5.972*10 kg and the radius r is-4000 miles a. calculate the mean density pe of earth in g/cc. the composition earth is approximately 50% iron (p-8 gec) and s0% rock (p-3 eec. does your answer in a. make sense? probably not. how would you explain that. b. 4. the distance between our nearest star (other than the sun) proxima centauri and the planct earth is about 4.22 light years. oar most speedy space craft moves about 25,000 miles/h. how long will you take to reach that star if you are in that space ship? the earth moves around the sun roughly in a circle in 365.25 days and the average distance between the sun and earth is 150,000,000 km (150 million km- 1.5x10 m). calculate the average speed of spaceship earth in space around the sun (we really do not know the real speed because the sun also moves at a tremendous speed? 5. 6. use the information from 5. and calculate the time in minutes light will take to come to earth from the sun if the speed of light isc 300,000 km/s?

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Physics, 15.10.2019 22:30, deon4257

Acar moves at a speed of 20 km/h for 15 minutes and then at a speed of 60 km/h for next 15minutes. calculate the total distance covered by the car.

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*calculate the speed* a car moves 25 km in 20 minutes.( give answer in km/h)...

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