1. Find an equation of the circle that satisfies the given
conditions.
Center (2, −3); radius 5
2. Find an equation of the circle that satisfies the given
conditions.
Center at the origin; passes through (4, 6)
3. Find an equation of the circle that satisfies the given
conditions.
Center (2, -10); tangent to the x-axis
4. Show that the equation represents a circle by rewriting it in
standard form.
x² + y²+ 4x − 10y + 28 = 0...
If a circle C with radius 1 rolls along the outside of
the circle x2 +
y2 = 36, a fixed point P on
C traces out a curve called an epicycloid, with
parametric equations x = 7
cos(t) − cos(7t),
y = 7 sin(t) −
sin(7t). Graph the epicycloid.
Find the area it encloses.
1) A circle of radius r has area A = π r2. If a
random circle has a radius that is evenly distributed in the
interval (0, 1), what are the mean and variance of the area of
the circle?
choose the correct answer
A) 1/3 and 1/12
B) Pi/3 and 1/12
C) Pi/3 and 1/5
D) Pi/3 and (4/45)*Pi^2
A nonconducting spherical shell of inner radius a = 2.00 cm and
outer radius b = 2.40 cm has (within its thickness) a positive
volume charge density p = A/r, where A is a constant and r is the
distance from the center of the shell. In addition, a small ball of
charge q = 4.5 x 10 ^ -14 C is located at the center of that
center. Find the total charge of the shell.
A small conducting spherical shell with inner radius a and outer
radius b is concentric with a larger conducting spherical shell
with inner radius c and outer radius d. The inner shell has a total
charge of -1q and the outer shell has a total charge of +3q.
Select True or False for the following statements.
1. The total charge on the inner surface of the small shell is
-4q.
2. The total charge on the outer surface of the...
A small conducting spherical shell with inner radius
a and outer radius b is
concentric with a larger conducting spherical shell with inner
radius c and outer radius d. The
inner shell has a total charge of -2q and the
outer shell has a total charge of +4q.
Select True or False for the following statements.
The total charge on the inner surface of the small shell is
zero.
True False The total charge on the inner surface of the
large...
A cylinder of radius 4.09 cm and a spherical shell of radius
7.47 cm are rolling without slipping along the same floor. The two
objects have the same mass. If they are to have the same total
kinetic energy, what should the ratio of the cylinder\'s angular
speed to the spherical shell\'s angular speed be?
a-
If the radius
r of a circle is measured to
be r 0.325
+\-
0.001
m, then
calculate the area of the
circle A = 3.14r 2
,
as well as the
uncertainty in the area.
b-Explain the difference
between precision and accuracy.
c-Do systematic errors affect
precision or accuracy? Do random errors affect precision or
accuracy?