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

  How long does it take for the bolt to fall to the elevator

an elevator is moving upward at a constant speed of 2.50 ms. a bolt in the elevator ceiling 3.00 m above the elevator

  What impulse did he imply on the ball

A tennis player hits a 1.45 kg tennis ball with a racket of mass 2.5 kg. what impulse did he imply on the ball

  A charge of 800 mc is placed at each corner of a square 120

a charge of 8.00 mc is placed at each corner of a square 1.20 m on a side. determine the magnitude and direction of the

  The intensity of electromagnetic radiation from the sun

the intensity of electromagnetic radiation from the sun reaching the earths upper atmosphere is 1.37 kwm2assuming an

  Light of wavelength-metallic surface

Light of wavelength 800nm is incident on a metallic surface. if the stopping potential for the photo-electrons ejected from the metal is 0.35 volts, find the work function for the metal and the longest wavelength incident light that will eject photo-..

  A 258 g block of copper whose temperature is 406 k is

a 25.8 g block of copper whose temperature is 406 k is placed in an insulating box with a 53.4 g block of lead whose

  Find the tension in the rope

A 253 kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal.

  What is the total work done by the force of gravity on ball

You throw a ball from the top of a 50 m high building at 12 m/s upward. The ball misses the building on the way down. The mass of the ball is 2 kg. What is the total work done by the force of gravity on the ball

  What is the increase in the internal energy of the neon

Suppose a tank contains 770 m3 of neon (Ne) at an absolute pressure of 1.01×105 Pa. The temperature is changed from 293.2 to 295.6 K. What is the increase in the internal energy of the neon?

  Obtain how much work do the students do on the car

Together, two students exert a force of 825N in pushing a car a distance of 35 m. How much work do the students do on the car

  Find the ratio of magnitude of first students velocity

Two students on roller skates stand face-to-face, then push each other away. One student has a mass of 99 kg and the second student 68  kg.  Find the ratio of the magnitude of the first student's velocity to the magnitude of the second student's velo..

  Estimate the refractive power of the lens

A lens maker makes a lens with a material whose index of refraction is 1.44. Estimate the refractive power of the lens

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