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What is the buoyant force on a sphere that has half its volume submerged in water (density = 1000 kg/m3) if the radius of the sphere is 0.1 m? (Vsphere = 4/3πr3, SAsphere = 4πr2)
A load of 50kg is applied to a lower end of a steel rod 80cm long and 0.6cm in diameter. How much will the rod stretch
When struck by a club, a golf ball initially at rest gets a speed of 31 m/s. evaluate what is the magnitude of the average acceleration
A tortoise can run with a speed of 0.10m/s, and a hare can run 20 times as fast. What is the length of the race
A person going for a morning jog on the deck of a cruise ship isrunning toward the bow (front) of the shipat 1.5 {\rm m/s} while the ship ismoving ahead at 8.5 {\rm m/s}. What is the speed of the jogger relative to the water?
A heavy ball and a light ball are dropped in the absence of air resistance. The two balls will experience the same acceleration. The heavier ball will experience a greater acceleration.
Your car's fan belt turns a pulley at 3.15rev/s . When you step on the gas for 1.55s , the rate increases steadily to 6.00rev/s, What's the pulley's angular acceleration
A meter stick is hinged at its lower end and allowed to fall from a vertical postion. iof its moment of inertia is Ml2/3 with what angular velocity does it hit the table
An automobile has a total mass of 2200 kg. It accelerates from rest to 70 km/h in 40 s. Assume each wheel is a uniform 44 kg disk. find the total kinetic energy of the automobile
A 1.5 ?F capacitor is charged to 57 V by a battery, which is then removed. At time t = 0, Calculate the potential difference VL(t) across the inductor as a function o
An atom originally in an energy level with E = -8.85 eV absorbs a photon that has wavelength 738 nm. What is the internal energy of the atom after it absorbs the photon/
Suppose all batteries are ideal unless told otherwise. Given three batteries with voltages of 1.0 V, 4.0 V and 8.0 V. What are the minimum and maximum voltages that could be achieved by connecting them in series?
A wave with a frequency of 200Hz is traveling down a 100m long wire whose total mass if 15 kg. The wire is under a tension of 1000 N. What is the length of the wave?
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