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1. ### I need physics help?

0 = 24m + (7 m/s)t - (1/2)(9.8 m/s^2)t^2 => 4.9 t^2 - 7 t - 24 = 0 => t = use quadratic formula and pick only the positive answer for t.

3 Answers · Science & Mathematics · 14/10/2019

2. ### What happens if gravity accelerates a object to a speed faster than light?

... following is the General Relativity equation for 4-acceleration: aᵏ = d²xᵏ⁄dτ² = -⌈ᵏᵤᵥ(...

9 Answers · Science & Mathematics · 04/11/2019

3. ### Physics-sound and guitar string's tenison?

wave speed (velocity) = √(T / µ) so for the same wave speed on the two different strings we have 151N...order to have a tension of 2600 N, you'd need 151N / 7.0g/m = 2600N / µ which...

1 Answers · Science & Mathematics · 25/06/2019

4. ### I Need Help Explaining a Superpower?

...hero has the power to sense an opponent's use of kinetic energy and match it for the duration of the encounter. (Pardon the creative writing exercise but...

3 Answers · Science & Mathematics · 03/02/2019

5. ### Physics HELP?

... = 0.16² + v² for v in m/s and so v = 0.61 m/s ◄ The bee needs to build in a easterly component to ...wind. So his resultant southerly speed is v - 0.63m/s * cos15º...

1 Answers · Science & Mathematics · 12/09/2019

6. ### Question for Physics. If someone could help me that would be nice :)?

... 44m/s ÷ 3.3m/s² ≈ 13.33 s to reach take off speed. How far will you travel in 13.33s accelerating...3/2 × (13.33)² = 293.33 m Update if you need more, and please choose a best answer from among those you...

2 Answers · Science & Mathematics · 01/02/2019

7. ### physics question! thank you?

...driver actually driving too slowly. Most drivers seek to exceed the speed limit at all times ( even when they are supposed to be ...

1 Answers · Science & Mathematics · 25/02/2019

8. ### Physics Problem - Time Dilation?

...still valid, just that as mass increases, the force needed to maintain that acceleration increases. time dilation...1–(1.65e7/3e8)²) = 1.0015 time slows down for the traveler so the 1000 days is seen...

2 Answers · Science & Mathematics · 21/07/2019

9. ### Why is the limiting mach number for the U-2 so low?

... down ni absolute value when the altitude does up, the stall speed goes up until both are almost the same. And that...thus heavier, which is not the way to go if the plane needs to be light.

4 Answers · Science & Mathematics · 14/07/2019

10. ### Physics exercise?

...impact forces themselves, then for velocity of C to be constant we need the impulse from friction in the same time interval... * f * t Sb = 14 m/s Speed of C isn't exactly constant because...

1 Answers · Science & Mathematics · 10/07/2019