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A primitive diving bell consists of a cylindrical tank with one end open and one end closed. The tank is lowered into a freshwater lake, open end downward. Water rises into the tank, compressing the trapped air, whose temperature remains constant during the descent. The tank is brought to a halt when the distance between the surface of the water in the tank and the surface of the lake is 23.6 m. Atmospheric pressure at the surface of the lake is 1.01 x 105 Pa. Find the fraction of the tank's volume that is filled with air.
How far do the balls initially fall and How fast are they traveling when the large ball hits the ground?
An object has a kinetic energy of 313 J and the momentum of magnitude 24.1 kg·m/s. Find out the speed and the mass of the object.
A plastic film with index of refraction 1.89 is put on the surface of a car window to increasethe reflectivity and thus to keep the interior of the car cooler.The window glass has index of refraction 1.54.
The displacement (in meters) of a wave is y= 0.26 sin (Π*t-3.7 Π *x), where t is in seconds and x is in meters. Is the wave traveling in the +x or -x direction?
A girl of mass 40 kg jumps with a horizontal velocity of 5 m s-1 onto a stationary cart with frictionless wheels. What is her velocity as the cart starts moving
Find the gravitational pull between earth and the moon. Given, mass of earth = 5.97 * 10^24 kg, mass of moon = 7.35 8 10 kg,
In an LC circuit in which C = 4.0?F the maximum potential difference across tha capacitor during the oscillations is 1.5V and the maximum current through the inductor is 50 mA.
A 1.70 kg block is released from rest and allowed to slide down a frictionless surface and into a spring. The far end of the spring is attached to a wall.
An object starting from rest accelerates at 3.00 m/s2for 10.0 s. The object then continues at a constant velocity for 5.00 s. find the objects displacement from the original starting point
An astronaut is stuck in space with no fuel for his thrusters. He is 250 m away from his ship and only has a heavy wrench in his possession. How long does it take the astronaut to reach his ship
the bond length of hf is 91 x 10-12 m.a where does the axis of rotation intersect the molecular axis?b calculate the
a circular wire coil with resistance 1.4 and an area 5.0x10^-3m^2 lies perpendicular to a magnetic field that's increasing at 2.0T/s, how many turns are in the coil?
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