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A solid ball has a weight of 3.3 N. When it is submerged in water, it has anapparent weight of 2.6 N.
What is the density of the ball?
A small droplet of oil with mass of 3.04×10-15 kg is held suspended in a region of uniform electric field directed upward with a magnitude of 5325 N/C
An L-R-C circuit has L = 0.400 H, C = 2.65×10?5 F, and a resistance R. Angular frequency is 307 rad/sec when R = 0.
A small rocket to gather weather data is launched straight up. few seconds into the flight, its velocity is 110 and it is accelerating at 17 . At this instant, the rocket's mass is 50 and it is losing mass at the rate of 0.45 as it burns fuel.
A 1000 kg artillery shell is fired from a battleship. What net external force is exerted on the artillery shell before it leaves the barrel of the gun
Furthermore, describe any differences in kinetic energy and gravitation potential energy among these balls while they hit the ground.
A proton moves perpendicularly to a uniform magnetic field at 5.0 107 m/s and exhibits an acceleration of 1.0 1013 m/s2 in the +x-direction when its velocity is in the +z-direction. find the magnitude and direction of the field.
A rod suspended on its end and acting as a physcial pendulum swings with a period of T=1.49 sec. What is the length of this physical pendulum
a 43 mg sample of pure gold 197au is irradiated in a reactor with a steady neutron flux of 51010 neutronss-cm2 long
a ruler is accurate when the temperature is 25deg c. when the temperature drops to -20deg c the ruler shrinks and no
Calculate the positron and electron beam energy needed to create a Higgs boson (mass 125GeV) in the CMS system
What is the frequency of sound put out by the engine of a car moving at 90km/hr if its four-cylinder engine makes 2000 revolutions per kilometer
A toy cannon uses a spring to project a 5.28 g soft rubber ball. The spring is originally compressed by 5.06 cm and has a force constant of 8.08 N/m. At what point does the ball have maximum speed
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