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1. ### You just competed in a track meet and you ran the 1500 m race in 444 seconds. What was your average speed in miles per hour?

... and seconds into hours. 5280 ft = 1 mile 60 • 60 = 3600 sec = 1 hr and 1 meter = 3.2808399 feet so you'd set it up like 1500 m/ 444...

1 Answers · Education & Reference · 18/02/2017

2. ### Could you help me explain how to solve this math problem in English?

...32t + k        0 = -32(4) + k    ...    at the peak height when:  t = 4 sec  and  v{4} = Vғ = 0        k = 128 ft/sec    ...   initial (vertical...

3 Answers · Education & Reference · 11/02/2017

3. ### Help pleassee will reward?

...that it is the positive direction for now: a = 1.8 m/sec² t = 3.81 sec d = 26.5 m         d  =  (½) • a • t²...

1 Answers · Education & Reference · 22/11/2016

4. ### Different sites are telling me a different candidate is winning, which news outlet is right, I'm confused?

just use google it refreshes every 30 secs.....trump 216 Hillary 197

4 Answers · Education & Reference · 08/11/2016

5. ### Homework Help?

... = V • t     Vx = 51 ⁄ 0.4257     Vx = 120 ft/sec  →→→  81.8 miles/hour

2 Answers · Education & Reference · 03/11/2016

6. ### Quick Physics Help?

Initial vertical velocity v₀ = 350sin35º Parabolic height formula h(t) = -16t² + v₀t + h₀ h(t) - -16t² + (350sin35º)t + 0 h(t) = -16t³ + (200.75)t • Find the roots 0 = -16t² + 200.75t...

1 Answers · Education & Reference · 01/11/2016

7. ### A woman is holding a 7 kilogram baby in her arms in the car traveling 30 miles an hour the car crashes and comes to stop in .05 seconds?

acceleration (change in velocity/time) to be -600m/s wrong units, acceleration has units of length / time^2. 14.31 m/sec (correct) / 0.05 = about -280 m/sec^2 Multiply by the mass, I get 1877 N

1 Answers · Education & Reference · 10/10/2016

8. ### Tina can walk 7 blocks in 34 minutes and 23 seconds. How many blocks can she walk in 2 hours? Show work.?

...comparable durations... convert everything to seconds First, how many sec. in 2 hrs? 2 hours x 60 min/hr = 120min x 60 sec/min = 7200 sec...

2 Answers · Education & Reference · 14/11/2016

9. ### Help With AP Phyic homework!?

... derivative of distance s = l'(t) = 2Ct s = 2(1/16)8.0 s = 1 1 km/sec <–––––– ----------------------- • If you don't know calculus...

1 Answers · Education & Reference · 29/09/2016

10. ### window washer drops a brush What is the speed of the falling brush after 2.51s Acceleration is 9.8 m/s?

The acceleration is 9.8 m/sec^2; use the equation of motion, the initial velocity is 0 as it was ...

2 Answers · Education & Reference · 29/11/2016