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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 1.26x10^-8 m, and a tangential speed at the rim of 2.34x10^-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 make one revolution?
A dock worker applies a stable horizontal force of 79.0 {rm N} to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves 14.0 {rm m} in the first 6.00 {rm s}.What is the mass of the bl..
A 32.5-g glass thermometer reads 24.1?C before it is placed in 131mL of water. What was the original temperature of the water
Suppose one gallon of gasoline produces 1.1 multiplied by 108 J of energy, and this energy is enough to operate a particular car for 26 miles.
protons in an accelerator at the fermi national laboratory near chicago are accelerated to a total energy that is 400
define the effect of inertia on how far each can rolls.
What type of car was involved in the hit and run
In the figure below, the converging lens' focal length is 13 cm, d = 18 cm, and the diverging lens' focal length is -12.6 cm, How tall is the image formed by the diverging lens
q1. suppose that in franck-hertz experiment electron of energy 12.5 ev is used to excite hydrogen atoms. what is the
Find the total work done on the car
There are two identical, positively charged conducting spheres fixed in space. find the initial charge on each sphere
a 15kg block is accelerated at 2.4m/s^2 up a frictionless plane inclined at 5 degrees to the horizontal, wth the speed increasing from 10m/s to 35m/s. what is the change in the blocks mechanical energy
Calculate the work done by 10 moles of an ideal gas in each step of the cycle below. The gas is initially in state A with pressurePA = 6 × 104 Pa and volume VA = 0.15 m3. It expands isobarically to state B with volume VB = 0.30 m3.
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