How long does it take the motor to make one revolution

Assignment Help Physics
Reference no: EM13336956

Some bacteria are propelled by biological motors that spin hair-like flagella. A typical bacterial motor turning at a constant angular velocity has a radius of 1.45 10-8 m, and a tangential speed at the rim of 2.42 10-5 m/s.

(a) What is the angular speed (the magnitude of the angular velocity) of this bacterial motor?

rad/s

(b) How long does it take the motor to make one revolution?

s

Reference no: EM13336956

Questions Cloud

Explain the ion could be reduced to potassium metal : If potassium ion is in solution, the ion could be reduced to potassium metal. In acidic solution, which would be more thermodynamically favorable: the reduction of K+ or the reduction of H+
At what height hydrogen atom densities will become equal : If the exospheric temperature is 1500 K and the hydrogen atom and helium atom densities at 500 km are 10^4 cm^3 and 10^6 cm^3 respectively,
Explain the voltage of the hydrogen ion reduction : In acidic aqueous solution, water can be reduced to H2 gas, but the H+ ions can be reduced more easity. What is the voltage of the hydrogen ion reduction half-reaction, under standard conditions
What is the earths velocity after the collision : A 900 g rubber ball is dropped from a height of 14 m and undergoes a perfectly elastic collision with the earth. What is the earth's velocity after the collision
How long does it take the motor to make one revolution : Some bacteria are propelled by biological motors that spin hair-like flagella. How long does it take the motor to make one revolution
Find the expression for loss of ke for any displacement x : A particle of mass "m" moves in a straight line with retardation proportional to its displacement. Find the expression for loss of KE for any displacement "x"
Do the crane consume the same or diffrent amounts of fuels : A car of mass 2000kg is lifted up a a distance of 30m by a crane in 1 min. A second crane does the same job in 2 min. Do the crane consume the same or diffrent amounts of fuels
Explain which is not a form of potential energy : 1. Which of the following is NOT a form of potential energy. a. compression of a spring b. electrostatic force c. gravity d. a free electron moving at 1000 m/s e.
Determine the force on the window : Consider an airplane window (area 0.29 m2). If the pressure inside the plane is atmospheric pressure and the pressure outside is 22% of Patm, what is the force on the window

Reviews

Write a Review

Physics Questions & Answers

  Find the energy delivered by a photon

Find the energy delivered by a photon of the yellow- green light to which our eyes are most sensitive

  Find percentage increase in the resistance in tungsten wire

The temperature coefficient of resistivity for the metal gold is 0.0034 (C°)-1, and for tungsten it is 0.0045 (C°)-1. what is the percentage increase in the resistance in a tungsten wire

  Etermine the final image distance relative to the lens

Two identical diverging lenses are separated by 16 cm. The focal length of each lens is -8.0 cm. Determine the final image distance relative to the lens on the right

  What charge must be on each plate

An electron field of 8.50e5 V/m is desired between two parallel plates each of area 45cm^2 and seperated by 2.45 mm of air

  Determine the effective radiation dose received by the tumor

A cancer treatment called the gamma knife uses focused 60Co sources to treat tumors. Each 60Co nucleus emits two gamma rays, Determine the effective radiation dose received by the tumor

  Determine the heat lost per day for the pipe in calories

a steel oil pipeline spans a river gorge 100 m wide. the inside wall is electrically heated to reduce the viscosity of the oil to ease pumping, determine the heat lost per day for the pipe in calories

  Find the magnitude and direction of the electric field at o

A uniformly charged insulating rod of length 19.0 cm is bent into the shape of a semicircle. The rod has a total charge of -7.50 µC. Find the magnitude and direction of the electric field at O, the center of the semicircle. EO = N/C.

  What is the direction of the magnetic field

An electron travels with speed 1.0*10^7 m/s between two parallel charged plates. The plates are separated by 1.0 cm, What is the direction of the magnetic field

  How far should an object be placed from the objective lens

To make a simple microscope a student places two converging lenses of +20 D at opposite ends of a 34 cm long tube. How far should an object be placed from the objective lens

  How far from the base of the hill does he end up

Josh starts his sled at the top of a 3.3m -high hill that has a constant slope of 25 ^\circ. How far from the base of the hill does he end up

  Find the magnitude and direction of the magnetic field

Two long, straight wires are parallel and are separated by a distance of d = 0.230 m, The top wire in the sketch carries current I1 = 3.80 A, toward the right, and the bottom wire carries current I2 = 7.00 A, what are the magnitude and direction of t..

  What is the final temperature at thermal equilibrium

A 150 g aluminum cup contains 150 g of water and both are at 13 C. If you add 150 g of hot water at 90 C what is the final temperature at thermal equilibrium? How much hot water at 90 C needs to be added to achieve a final temperature of 44 C?

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