# Science

Why is California’s high-speed rail such a groundbreaking effort?
Why will it take so long to complete the high-speed rail route?
Should other states wait to see if the high-speed rail system works well before starting their own plans for similar systems?

1. 👍 1
2. 👎 0
3. 👁 436

1. 👍 1
2. 👎 1
2. Lesson 13: Interdependent Relationships in Ecosystems Test
Science 8 A Unit 4: Interdependent Relationships in Ecosystems i need the answer like right now i need to get my grade up can you please hurry up i neecd the answer right now

1. 👍 0
2. 👎 0
3. please send them this night or tommow morning or else in trouble

1. 👍 1
2. 👎 0

## Similar Questions

1. ### Physics

A Canadian goose flew 845 km from Southern California to Oregon with an average speed of 28.0 m/s. How long, in hours, did it take the goose to make his journey?

asked by Jenny on September 10, 2009
2. ### college physics

a) A light-rail commuter train accelerates at a rate of 1.25 m/s2. How long does it take it to reach its top speed of 80.0 km/h starting from rest? (b) The same train ordinarily decelerates at a rate of 1.75 m/s2. How long does it

asked by Melissa on January 25, 2014
3. ### physics

It is possible to shoot an arrow at a speed as high as 100 m/s. (a) If friction is neglected, how high would an arrow launched at this speed rise if shot straight up? (b) How long would the arrow be in the air? Please help! I do

asked by sarah on June 7, 2010
4. ### Foundations of Algebra

20. Is it more difficult to walk up the ramp (6 ft high 8 ft long) or the hill (8 ft high, 12 ft long)? I am confused on this.

asked by Roshni on January 18, 2017
5. ### Physics

The floor of a lorry is 2.0m high. A plank 5m long is used as an inclined plane to raise some load up the lorry. If the efficiency of this machine is 50% what is the minimum effort (applied parallel to the plane) required to raise

asked by Anonymous on January 26, 2020
1. ### Science

1. Why is California’s high-speed rail such a groundbreaking effort? 2. Why will it take so long to complete the high-speed rail route? 3.Should other states wait to see if the high-speed rail system works well before starting

asked by Princess Anna on December 23, 2013
2. ### Physics

A block and tackle with a velocity ratio of 5 is used to raise a mass of 25kg through a vertical distances of 40cm at a steady rate.if the effort is equal to 60N,determine.(a)The distance moved by the effort.(b)The workdone by the

asked by Rose on January 1, 2015
3. ### science

10. Which of the following correctly describes a gamma ray? A. long wavelength and low frequency B. long wavelength and high frequency C. short wavelength in low frecuency D. short wavelength and high frequency 11. Which of the

asked by anonymous on April 23, 2020
4. ### physics

an olympic long jumper i capable of jumping 8.0 m. Assuming hi horizonal speed is 9.1 m/s as he leaves the ground, how long is he in the air and how high doe he go? Assume that he lands standing upright that is, the same way he

asked by taylor on January 5, 2012
5. ### Physics-Average velocity

The first controlled, sustained flight in a heavier-than-air craft was made by Orville Wright on December 17, 1903. The plane took off at the end of a rail that was 60 feet long, and landed 12 seconds later, 180 feet away from the

asked by Destiny on October 3, 2017