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1. ### Find the tangential and normal components of the acceleration vector. (r)= (t^2 +1)I +t^3 j, t>=0?

r(t) = t² i^+ t³ j^ v(t) = 2t i^ + 3t² j^ a(t) = 2 i^ + 6t...

3 Answers · Science & Mathematics · 11/11/2019

2. ### There r 8.8liters ofgas in a piston at pressure of 1.75atmospheres Whats the newpressure in atmospheres inside piston? full question details?

P * V = n * R * T Since n, R, and T are kept constant...

1 Answers · Science & Mathematics · 24/11/2019

3. ### I have V, and current for different lengths. I can get R with R=V/length. How does cross sectional area relate to the R vs. length graph?

It is not true that R=V/length. You can get resistance R = V / I where... suspect that it is to calculate the resistivity ρ of the wire material. R = ρℓ / A so, if you plot R (vertical) vs ℓ/A...

2 Answers · Science & Mathematics · 11/09/2019

4. ### Physics Problem: What is the resistance R in the figure? / What is the emf of the battery in the figure?

The voltages across the middle branch (R) and across the right hand branch (R+10) are equal as the branches...

3 Answers · Science & Mathematics · 19/08/2019

5. ### Consider the circuit shown in figure. Assume I = 0.82 A. What is the value of resistor R?

... I = 0.82 A. What is the value of resistor R Best way to do these problems is to solve what you can, ...

2 Answers · Science & Mathematics · 03/10/2019

6. ### Consider a freely spinning merry-go-round, which can be treated as a uniform disc of radius R and mass m1 rotating about a vertical?

4. Li = m2 v R/ 4  m2*v*R/4 = (½*m1*R² + m2*(R/4)²...R/16)*w 4v = (8R+R)*w = 9Rw w = 4v / 9R for v=6 R=12 w = 4*6 / 9*12 = 2/9 = 0.22 rad/s

1 Answers · Science & Mathematics · 13/05/2020

7. ### In a series RL circuit like the figure, ε0 = 32 V , R = 3.2 Ω , and L = 3.0 H?

Use the equation... i = -Vo/R*ln(1 - iR/Vo) i = 7.1, Vo = 32, R = 3.2, L = 3, t = ? now transpose equation to make t the subject... plug in the values & t = 1.16 secs

1 Answers · Science & Mathematics · 14/03/2020

8. ### You connect a battery, resistor, and capacitor as in (Figure 1), where E = 51.0 V, C = 5.00 μF, and R= 110 Ω. The switch S is closed at t= 0?

T = R*C = 5.0 *110 =  0.55 msec  8/51 = 1-e^-k 43/51 = e^-k k = -ln 43/51 = 0.1706 = t/T t = T*0.1706 = 94 μ sec

1 Answers · Science & Mathematics · 10/03/2020

9. ### What is the volume Vball of the ball (radius R) with charge q?

... is the volume VG of the Gaussian sphere (radius R) … “ should be: “What is the volume VG of the Gaussian...

2 Answers · Science & Mathematics · 10/09/2019

10. ### The next figure shows, in cross section, a plastic, spherical shell with uniform charge Q = −16e and radius R = 10 cm.?

... where k = 1/4πε₀ = 8.99e9 N·m²/C² For r < 10 cm, the outer shell of charge has no effect on the field...

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