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Problem: A box that is 3.5m x 2m x 3.3m is filled with 452 balloons. Each balloon is filled with 4.1887902047864 x 10-6 cm3 of helium. Air flowing into the box causes the balloons to constantly bounce around.
Question 1: What is the mean free path of a balloon?
A skater is initially spinning at a rate of 12.5 rad/s with a rotational inertia of 2.87 kg · m2 when her arms areextended. What is her angular velocity after she pulls her arms inand reduces her rotational inertia to 1.64kg · m2?
the small spherical planet called glob has a mass of 6.50times1018kg and a radius of 6.20times104m. an astronaut on the
questiona status newtons first law of motion. b a 2-kg object is affecting horizontally with a speed of 4 ms. how much
Three resistors, 25, 45, and 75 Ohms, are connected in series, and a 0.51-A current passes through them. What is (a) the equivalent resistance and (b) the potential difference across the three resistors?
If the jet is moving at a speed of 1600 km/h at the lowest point of the loop, Calculate the pilot's effective weight at the top of the circle
A motorcycle has a constant speed of 28.1 m/s as it passes over the top of a hill whose radius of curvature is 130 m. Find the magnitude of the centripetal force
The drawing shows a bicycle wheel resting against a small step whose height is h = 0.108 m. What is the magnitude of the force when this happens
A 0.33kg block is located 0.2 m from the center of a turntable. The coefficient of static friction between block and surface of the turntable is 0.44.
A singly charged positive ion has a mass of 2.34 x 10-26 kilogram. Obtain the radius of the path of the ion in the field
discussion topic 11.discuss how differentiation and integration theorems simplify analysis of time-based
Two initially uncharged capacitors, of capacitance C and2C, are connected in series across a battery. The voltage across each capacitor is the same. The energy stored by each capacitor is the same.
Sound enters the ear, travels through the auditory canal, and reaches the eardrum. The auditory canal is approximately a tube open at only one end. The other end is closed by the eardrum. A typical length for the auditory canal in an adult is abou..
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