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A 42.0 kg block of ice slides down a plane with an incline of 34°. Assuming friction is neglecting, what is the acceleration of the block down the incline?
A wheel and axle has its matter distributed like a solid disk. (I=1/mR^2) It has a radius of 0.60m and a mass of 0.50kg, how many turns does the wheel make in 2.0sec
A large, cylindrical roll of tissue paper of initial radius R lies on a long, horizontal surface with the outside end of the paper nailed to the surface. Determine the speed of the center of mass of the roll
A violinist is tuning the A string on her violin by listening for beats when this note is played simultaneously with a tuning fork of frequency 440 Hz. What was the frequency of the mistuned A string
Light behaves primarily as a particle when it ...
A 3.8-kg block of iron (c=0.11 kcal/kgoC) that has been brought to a temperature of 1,078oC is placed on top of a 2.4-kg block of ice (c=0.5 kcal/kgoC) that has been cooled to -50oC
If the current through the inductor (L = 25.1 mH) at 351 Hz has an amplitude of 45 mA, what is the rms value of the AC voltage
A spherical capacitor contains a solid spherical conductor of radius 0.5mm with a charge of 7.4 micro coulombs, surrounded by a dielectric material with er = 1.8 out to a radius of 1.2mm, then an outer spherical non-conducting shell, with variable ch..
Water flows at 0.25{\rm L}/{\rm s} through a 12-m-long garden hose 2.0{\rm cm} in diameter that is lying flat on the ground. find the gauge pressure of the water where it enters the hose
The radioactive isotope has a half-life of 2.60 y and has a half-life of 87.0 days . They each emit positive β- particles or positrons. what will the count rate be at that time
two point charges, seperated by 1.5 cm have charge values of +2.0, What is the value of the mutual force between them
The ferromagnet gadolinium has a Curie temperature of 298 K and each atom has J=7/2 and g=2. Find the value of the molecular field at low temperatures
A gray kangaroo can bound across level ground with each jump carrying it 8.1m from the takeoff point. What is its maximum height above the ground
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