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An undersea research chamber is spherical with an external diameter of 3.90m . The mass of the chamber, when occupied, is 30800kg . It is anchored to the sea bottom by a cable. The density of seawater is 1025 kg/m3. What is the buoyant force on the chamber? What is the tension in the cable?
Suppose you hold a f=5.0 cm magnifying glass 3.0 cm from a 2.0 mm high ant. how large is the image of the ant
An object is placed in front of a diverging lens of focal length of 17.0cm, Using the thin lens equation find the distance from the lens to the object and from the lens to the image
A tennis player standing 12.6 m from the net hits the ball at 2.79° above the horizontal. how fast was the ball moving when it left the racket
Find an expression for the electric potential at the center. A proton is released from rest in a uniform electric field of magnitude 1.20×10^5 N/C. Find the speed of the proton after it has traveled.
For safety in climbing, a mountaineer uses a nylon rope that is 60 m long and 1.0 cm in diameter. When supporting an 88 kg climber, the rope elongates 1.80 m. Find its Young's modulus.
Consider a pump that is required to compress air in a factory. The cylinder in the pump has an inner diameter of 2.00 cm and length 60.0 cm. What is the increase in internal energy of the gas
A planet orbits the sun with a period of 14 years? How far is the planet from the sun
A ball rolls across a floor with an acceleration of 1.00m/s^2 in a direction opposite to its velocity. The ball ahs a velocity of 4.00m/s, What was the inital speed of the ball
A coffee filter of mass 1.1 grams dropped from a height of 1 m reaches the ground with a speed of 0.5 m/s. How much kinetic energy Kair did the air molecules gain from the falling coffee filter? Start from the Energy Principle and select as system..
A variable-speed drill, initially turning at 300 rpm, speeds up to 1300 rpm in a time interval of 0.3 s
At full power, how long would it take for car to accelerate from 0 to 56 mph? Neglect friction and air resistance.
Two identical guitar strings are prepared such that they have the same length (1.91 m) and are under the same amount of tension, What is the wave propagation speed on the guitar strings
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