# Yahoo Web Search

1. ### A projectile is fired at 55 degrees above the horizontal. At the highest point in its trajectory, its speed is 100 m/s. ?

...change at all, while the vertical component varies because of gravity.  At the highest point in the trajectory the vertical component is zero and all the speed is in the horizontal component.  So the horizontal component is 100 m...

2 Answers · Science & Mathematics · 22/10/2020

2. ### Should I buy DVD+R 8x or 16x and what is the difference?

... difference is the maximum recording speed . To benefit from a higher speed , both the DVD media and the recording drive must be capable of...

5 Answers · Computers & Internet · 19/10/2020

3. ### Does having AC on in the car use more gas and if so, can u provide a comparison of how much more ?

... resistance does use up lots of gasoline when traveling at high speeds . I think when I click the A/C on I get about 1-2...

3 Answers · Cars & Transportation · 21/10/2020

4. ### A ball rolls off a table that is 1.2 m high . It lands 2.6 m away from the edge of the table. ?

a) time to fall t = √(2h / g) = √(2*1.2m / 9.8m/s²) = 0.49 s ◄ b b) v = x / t = 2.6m / 0.49s = 5.3 m/s  ◄ a c) V = √(v² + 2gh) = √(5.3² + 2*9.8*1.2) m/s = 7.2 m/s ◄ b

1 Answers · Science & Mathematics · 22/10/2020

5. ### Short falling ball physics question?

...3 = 45m 2.. Kinetic energy is proportional to speed squared.  So the faster ball ...mgh, the faster ball goes 2.25 times higher than the slower ball. 3. y = ut +  ...

1 Answers · Science & Mathematics · 17/10/2020

6. ### Will Trump's second term be one of the most effective presidencies in the history of the US?

5 Answers · Politics & Government · 20/10/2020