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Estimate how many molecules of air are in each 1.8 L breath you take that were also in the last breath Einstein took (assumed to be the same volume). (Hint: Assume the atmosphere is about 12 km high and of constant density. Take the temperature of the air to be 27°C.)
A person pushes a 10 kg box from rest and accelerates it to a speed of 3.2 m/s with a constant force. what is the force exerted by the person
A particle is displaced in 0.92 s from point A to point B with a uniform speed of 4.8 m/s via a circular path of radius 3.8 m centered at the origin. Obtain the average acceleration of the particle
Seat belts and air bags save lives by reducing the forces exerted on the driver and passengers in an automobile collision. Cars are designed with a "crumple zone" in the front of the car. Estimate the net force that ultimately stops the person
Ions having equal charges but masses of M and 2M are accelerated through the same potential difference, what is the radius of the arc followed by the lighter
a diver runs horizontally with a speed of 1.2 m/s off a platform that is 5.0 m above the water. What is the speed just before striking the water
A very long solenoid with a circular cross section and radius r= 7.10 cm with n= 1.50E+4 turns/m has a magnetic energy density uB= 5.10 mJ/m3. What is the total energy stored in the solenoid
If the bullet has a mass of 21.5 and a speed of 310 , how high would the block rise into the air after the bullet becomes embedded in it.
A diverging lens (f = -10 cm) is located 20.0 cm to the left of a converging lens (f = 31.5 cm). A 3.00 cm tall object stands to the left of the diverging lens, What is the height of the final image
A generator rotates at 95Hz in a magnetic field of 0.025T . It has 650 turns and produces an rms voltage of 180V, What is the area of each turn of the coil
For a dispersing prism with an index of 1.5 and an apex angle of 60 degrees, find the minimum angle deviation of light through the prism
There is a function generator driving a series RC circuit. The function generator provides an AC current of I(t) = Io sin(2? f t), What is the reactance of the capacitor
The total charge that an automobile battery can supply without being recharged is given in terms of Ampere-hours. If each of the two headlights draws 1.7 A , find out the time before your battery is "dead"
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