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A small solid ball is released from rest while fully submerged in a liquid and then its kinetic energy is measured when it has moved 5 cm in the liquid. The figure gives the results after many liquids are used. The kinetic energy K is plotted versus the liquid density ?liq, and K = 2.244 J sets the scale on the vertical axis. What is the density of the ball?
What is the volume of the ball?
A layer of oil (n = 1.45) floats on an unknown liquid. A ray of light originates in the oil and passes into the unknown liquid. What is the index of refraction of the unknown liquid
A jet with mass m = 1.3 × 105 kg jet accelerates down the runway for takeoff at 2.4 m/s2, What is the net horizontal force on the airplane
You launch a 5kg ball from a height of 1 meter. Find the speed of the ball and its kinetic energy at the top of its trajectory, find the velocity and speed of the ball when it reaches the ground
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You have 2 capacitors plus 1 resistor all hooked up in series. The value of R= 15 ohms and C1=C2= 1uf. Find the time constant T(tau)=RC
The critical angle for total internal reflection at a liquid-air interface is 45.0^\circ. what angle does the refracted ray in the air make with the normal
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An electric field of magnitude 5.25 105 N/C points due west at a certain location. Find the magnitude and direction of the force on a
part of the wonder of blowing soap bubbles is watching the different colors reflect. if part of the soap bubble looks
An 8.0-kg block is set moving with an initial speed of 6.0 m/s on a rough horizontal surface. how far does the block travel before it stops
A 3000kg rocket and its 500 kg payload are traveling at a speed of 2000m/s. what is the velocity of the payload after separation
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