Question

How can a triangle makes a cone
if we rotate it about the y-axis? Please provide a full
explanation.

Answer #1

i hope this would be helpful for you

Consider the region bounded by y=2x and y=x^2. Rotate it about
the Y-axis. Find the volume of the resulting solid.

The region in the first quadrant bounded by y=2x^2 ,
4x+y=6, and the y-axis is rotate about the line
x=−3.
The volume of the resulting solid is:

a rod 2.5 m long with mass 10 kg can rotate freely about a
horizontal axis through the end of the rod.
a bullet with mass 15 grams or 0.015 kg with a speed of 400 m/s
strikes center of the rod in a direction perpendicular to the rod,
and is embedded there.
What is the rod's angular speed after the bullet stops in the
rod?

A solid cylinder is free to rotate about an axis through its
center. If the rotational inertia of the cylinder is .56 kg m^2,
and the cylinder is initially at rest, how long must a net torque
of 2.1 Nm act on the cylinder to bring it up to an angular speed of
44 rad/s?

How would tax effect dividend and price. Please
provide a full explanation.

Can someone please provide an explanation of how to calculate
the heat of reaction for the following:
CH4(g) + 2O2(g) -> CO2(g) + 2H2O(g)
Answer is kJ/mol
Thank you!

the region bounded by the curves xy=4 and x+y=15 is revolved
about y axis. calculate the volume of the solid generated
full calculation

2. Rotate the semicircle of radius 2 given by y = √(4 − x^2)
about the x-axis to generate a sphere of radius 2, and use this to
calculate the surface area of the sphere.
3. Consider the curve given by parametric equations x = 2
sin(t), y = 2 cos(t).
a. Find dy/dx
b. Find the arclength of the curve for 0 ≤ θ ≤ 2π.
4.
a. Sketch one loop of the curve r = sin(2θ) and find...

The stars, gas and dust in a galaxy rotate about the center of
the galaxy. We would like to know exactly how to describe the
rotation of all parts of the galaxy. In other words, we want to
know if galaxies rotate like merry-go-rounds, or like planets orbit
the Sun, or in some other way.
1. Do points near the center of a merry-go-round complete a full
rotation in the same amount of time as points near the outer edge...

A wire formed in the shape of a right triangle with base
Lab = 36 cm and height Lbc = 60 cm carries
current I = 477 mA as shown in Position 1. The wire is located in a
region containing a constant magnetic field B = 1.11 T aligned with
the positive z-axis.
1. What is Fac,x, the x-component of the force on the
segment of the wire that connects points a and c in Position 1?
2. What...

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