Bacteria are propelled by motors-spin hair-like flagella

Assignment Help Physics
Reference no: EM13658502

Several bacteria are propelled by motors that spin hair-like flagella. A characteristic bacterial motor turning at a constant angular velocity has a radius of 1.9x10-8m, and a tangential speed at the rim of 2.9x10-5 m/s. (a) What is the angular speed (the magnitude of the angular velocity) of this bacterial motor? (b) How long does it take the motor to create one revolution?

Reference no: EM13658502

Questions Cloud

Difference among the plates of a parallel-plate capacitor : At what rate should the potential difference among the plates of a parallel-plate capacitor with a 2.2 μF capacitance be changed to produce a displacement current of 1.4 A?
What is the angle of occurrence of the violet light : Red light (n=1.520) and violet light (n=1.538) traveling in air are incident on a slab of crown glass. Both colors enter the glass at the similar angle of refraction. The red light has an angle of incidence of 30.00 degrees. What is the angle of occu..
What is the total power transmitted by the source : At a distance of 25m from an isotropic 100 MHz radio source the intensity is 120W/m2. What is the rms electric field at 25m? What is the total power transmitted by the source?
Discover the wavelength of the sound waves : Point A is the midpoint of one of the sides of a square. On the side opposite this spot, two in-phase loudspeakers are located at adjacent corners, as in Figure 27.39. Standing at point A you hear a loud sound because of constructive interference amo..
Bacteria are propelled by motors-spin hair-like flagella : Several bacteria are propelled by motors that spin hair-like flagella. A characteristic bacterial motor turning at a constant angular velocity has a radius of 1.9x10 -8 m, and a tangential speed at the rim of 2.9x10 -5 m/s. (
Does the answer depend on the direction the plane flying : An airplane is in level flight over Antarctica, where the magnetic field of the earth is mainly directed upward away from the ground.  As viewed by a passenger facing toward the front of the plane, is the left or the right wingtip at higher potential..
What is gravitational acceleration at surface of such a star : A typical neutron star might have a mass equal to that of the sun however a radius of only 10.0 km. What is the gravitational acceleration at the surface of such a star?
Assuming that it might be treated as convex spherical mirror : A drop of water on a countertop reflects light from a flower held 3.6cm directly above it. The flower's diameter is 2.2cm, and diameter of the flower's image is 0.14cm. What is the focal length of the water drop, assuming that it might be treated as ..
How much energy is delivered to the battery : A battery charger is associated to a dead battery and delivers a current of 5.1 A for 6.1 hours, keeping the voltage across the battery terminals at 12 V in the procedure. How much energy is delivered to the battery?

Reviews

Write a Review

Physics Questions & Answers

  Determine initial-final temperatures-liquid-vapor water

A mass of 5 kg of saturated liquid-vapor mixture of water is contained in a piston-cylinder device at 125 kPa. Initially, 2 kg of the water is in the liquid phase and the rest is in the vapor phase. Heat is now transferred to the water, and the pisto..

  What is the total potential energy of the ship

A 4.0x104 kg spaceship located halfway between them. What is the total potential energy of the ship

  What is the tension in the string

What is the tension in the string.At one time, television sets used "rabbit-ears" antennas. Such an antenna consists of a pair of metal rods.

  Obtain how much kinetic energy did each piece acquire

An explosion breaks an object into two pieces, one of which has 1.5 times the mass of the other. how much kinetic energy did each piece acquire

  How long will it take her to reach the shuttle

Suppose the act of throwing the tool takes the austronaut 0.7 seconds, that is she applied a force to the tool before it leaves her hand. What velocity toward the space shuttle will that have given her? And if she was 12m away from the shuttle to sta..

  Find out the speed of the car before the collision

The cars stick together and move as a unit after the collision, at an angle of 47.0° north of east and at a speed of 6.36 m/s. Find out the speed of the 3000 kg car before the collision.

  What is the displacement of the particle after a time

A particle of charge +13 µC and mass 2.50 10-5 kg is released from rest in a region where there is a constant electric field of +270 N/C. What is the displacement of the particle after a time of 1.30 10-2 s

  What is the cause of this phenomenon

A gymnast performing a routine on the high bar feels weightless at the highest point of their rotation. Why does the gymnast feel weightless at the highest point of their rotation around the bar? What is the cause of this phenomenon

  Find the direction of the angular momenta of the bicycle

Imagine that you are riding a bicycle facing due east, and travelling forwards. In what direction is the angular momenta of the bicycle wheels

  Evaluate what is the speed

A 0.335 m string is clamped at both ends. If the lowest standing wave frequency in the string is 326 Hz, Evaluate what is the speed

  Find the number of moles of gas-final pressure

Suppose the temperature of 4.63 L of ideal gas drops from 353 K to 275 K. (a) If the volume remains constant and the initial pressure is atmospheric pressure, find the final pressure. Pa (b) Find the number of moles of gas. mol

  It is supported by a loose bolt attached to the wall at one

a stores sign with a mass of 20.0 kg and 3.00 m long has its center of gravity at the center of the sign. it is

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd