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while in church peter notices a lamp hung by a light chain to the ceiling peter counts 850 cycles in 592 seconds how
for a damped simple harmonic oscillator the block has a mass of 22 kg and the spring constant is 13 nm the damping
calculate the total mass of the protons and electrons in 199f use 1007825 amu as the mass of 11hmass of a proton and an
in the figure a physical pendulum consists of a uniform solid disk of radius r 549 cm supported in a vertical plane by
a simple test to determine the capabilities of a persons lungs is to have the person blow with full force into one end
what chemical symbol should be used for x in the following nuclear reaction 23793np-gt23391paaz
a block of mass m 590 kg at rest on a horizontal frictionless table is attached to a rigid support by a spring of
identify the nuclide produced when plutonium-239 decays by alpha emission 23994pu-gt42he identify the nuclide produced
in which case is a process spontaneous at any temperature delta h negative delta s positive 6 for the reaction c3h8g
to 500 ml of 0015m naoh is added 500 ml of 0013m hcl what is the resulting ph of the solution 1 8 2 11 3 3 412 5 9 the
a particular smoke detector contains 285 uci of 241am with a half-life of 458 the isotope is encased in a thin
why have people been unable to harness nuclear fusion for the generation of electricity a we have not been able to
when placed in a fluid with an unknown density a sphere with a radius of 850 cm floats with 23 of its volume submerged
for the lead-acid battery with the overall reaction pbo2spbs2hso4-aq2h-gt2pbso4s2h2ol what are the oxidation states of
a 950-kg satellite orbits the earth at a constant altitude of 105-kma how much energy must be added to the system to
a series circuit with r20ohms c330 muf and l30 mh is connected to an ac sourceof amplitude 160v and frequencey of 60
a 324 g sample of lauric acid c12h24o2 a common constituent of fats is burned in a bomb calorimeter the temperature of
a cylinder contains 250 g of helium at 200 k the external pressure is constant at 1 atm there is an increase in
a copper wire with a diameter of 13 mm has a uniform electric field of 045 vm imposed along its entire length the
in a coffee-cup calorimeter 1 mol koh and 1 mol hbr initially at 235 oc celsius are mixed in 100g of water to yield the
a series circuit with r100ohms l5h and c50 muf is driven by an ac signal of frequency 75 hz and amplitude of 18va whats
a 80 kg block oscillates with an amplitude of 0070 m on a light spring constant k 13 nm what is the maximun value of
a 060-kg object connected to a light spring with a force constant of 228 nm oscillates on a frictionless horizontal
the 75 kg man is falling at 15 ms in an attempt to stop his fall the brake shoe is pressed against the spinning pulley