Homework Statement
Three resistors are connected across a battery as shown in the figure. (Let V = 141 V and R1 = R2 = R3 = 204 Ω.)
http://www.webassign.net/bauerphys1/25-p-057-alt.gif
(a) How much power is dissipated across the three resistors?
P1 =
P2 =
P3 =
Homework...
Homework Statement
In a region of two-dimensional space, there are three fixed charges: +1 mC at (0, 0), −2 mC at (12 mm, -7 mm), and +3 mC at (-6 mm, 18 mm). What is the net force on the −2-mC charge?
magnitude
direction ° counterclockwise from the +x-axis
Homework Equations...
correction it should be 5-3cosθ =5-3sinθ, but after equating those two and solving i got
θ=π/4,5π/4
so now would the correct integral for solving the shared area of the two limaçon
A = ∫(5−3cos(θ))^2 dθ + ∫(5−2sin(θ))^2 dθ ?
Homework Statement
Given the two polar equations r=5-3cos(θ) and r=5-2sin(θ) find the area of the region common to both curves.
Homework Equations
A= 1/2∫ r^2 dθ
The Attempt at a Solution
i understand that i plug in the two equations into the equation, but i don't know how to find the...
so would it be
Velocity of package to ground = velocity of package to blimp + velocity of blimp to the ground?
V(PG) = V(PB) + V(BG)
then i just use vector addition and get the velocity for V(PG)?
well i know the package's initial velocity is 4.5 m/s. I'm just not sure how to combine both the movement of the blimp and then calculating the velocity of the package as well
Homework Statement
A blimp is ascending at the rate of 7.6 m/s at a height of 67 m above the ground when a package is thrown from its cockpit horizontally with a speed of 4.5 m/s.
(a) How long does it take for the package to reach the ground?(b) With what velocity (magnitude and direction)...
sorry but I'm not following you on your explanation. I understand about taking out all the units, but then where did you get 3.7*x^2 from and what is the final equation you are using?
Homework Statement
Water flows into a cubical tank at a rate of 19 L/s. If the top surface of the water in the tank is rising by 3.7 cm every second, what is the length of each side of the tank?
Homework Equations
v=L^3
The Attempt at a Solution
so what I started doing was...
if i take this and continue would the rest be
55 (mi/hr) * 8 (furlong/mi) * 1000 (millifurlong/furlong) * 336 (hours/fortnight) * 10^-6 (fortnight/microfortnight)?
Homework Statement
The speed limit on a particular stretch of road is 55 miles per hour. Express this speed limit in millifurlongs per microfortnight. A furlong is 1/8 mile, and a fortnight is a period of 2 weeks.
Homework Equations
The Attempt at a Solution
so what I tried doing...