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1. ### Physics 1 Question?

The first step is to calculate the vertical and horizontal components of the tennis ball’s initial velocity. Vertical = 59.8 * sin 15 (15.5 m/s) Horizontal = 59.8 * cos 15 (15.8 m/s) During one half of the time, the tennis ball’s vertical velocity...

3 Answers · Science & Mathematics · 02/09/2019

2. ### Electric Field Question?

The unrounded answer from part a) is 3.2344x10^17 N/C. It's best to use this unrounded value in part b). The force on charge q in field E is simply F = qE. We can ignore the electron charge's minus sign as we are only...

1 Answers · Science & Mathematics · 04/09/2019

3. ### I tried to solve this problem (Q (a)) but i couldnt find the value of q. any idea how to solve it?

... in coulombs F is force in newtons r is separation in meters k = 8.99e9 Nm²/C²

1 Answers · Science & Mathematics · 01/09/2019

4. ### Got 43.4 +/- 1.2 cm^3 for part 1.?

...do need to include the uncertainty from the first part. Volume = 4/3 pi() r^3 Density = mass / volume You can do this by"rule of thumb"...

1 Answers · Science & Mathematics · 31/08/2019

5. ### I need help?/?

... in coulombs F is force in newtons r is separation in meters k = 8.99e9 Nm²/C²

1 Answers · Science & Mathematics · 31/08/2019

6. ### PHYSICS???/ So confused?

...net charge of 12 + 5 - 8 = 9 uC. So if al three spheres touch r the same time, all three end up with +3 uC. Part c --> the magitude...

2 Answers · Science & Mathematics · 31/08/2019

7. ### Electric Field - Writing an Expression For The Magnitude of Force?

... in coulombs F is force in newtons r is separation in meters k = 8.99e9 Nm²/C²

1 Answers · Science & Mathematics · 29/08/2019

8. ### physics 2 question?

... a stable orbit, the centripetal force must equal the electrostatic force: mv²/r = kQq / r² so that the centripetal acceleration a = v²/r = kQq...

3 Answers · Science & Mathematics · 28/08/2019

9. ### A jet is flying at a speed of 356 m/s in an air temperature of 25 C. What is the Mach number of the jet?

... = 1.4 for air at STP* *standard temperature and pressure R = gas constant = 286 m²/s²/K for air T = absolute temperature...

3 Answers · Science & Mathematics · 24/08/2019