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An aluminum cylinder is suspended in an unknown fluid by a spring scale. Outside the fluid, the object weighs 20N. In the fluid it weighs 10N. If the cylinder has a volume of 10–4m3, what is the density of the fluid?
Light of wavelength 380 nm is incident on the face of a silica prism at an angle of 1 = 64.2 (with respect to the normal to the surface). Find the angle between the incident and emerging rays
A sound source approximated as a point radiates sound equally in all directions. What is the total power of the source
A hydrogen atom is in its first excited state n=2. Using the Bohr theor yof the atom, calculate linear momentum of the electrons
A box of mass 15 kg is dragged by a 50 N horizontal force a distance of 10 m over a rough surface with the coefficient of friction = 0.14 the work done by friction force.
In a test explosion, a detonating hydrogen bomb briefly achieves a temperature of 10 million degrees Kelvin
Three resistors havin resistances of R1= 1.66?, R2= 2.44?, and R3= 4.94? respectively, are connected in parallel to a 28.2V battery that has negligible internal resistance. Find the power dissipated in each resistor
A 300 turn solenoid has a radius of 3.00 cm and a length of 18.0 cm. Find the inductance of the solenoid
A generator at one end of a very long string creates a wave
Two equally charged insulating balls each weigh 0.14 g and hang from a common point by identical threads 30 cm long. The balls repel each other so that the separation between their centers is 6.4 cm. What is the magnitude of the charge on each bal..
An electron gun inside a computer monitor sends an electron toward the screen at a speed of 1.20 × 108 m/s. what is the magnitude of its relativistic momentum
A billiard ball rolling across a table to the right at 1.4 m/s makes a head-on elastic collision with an identical ball. The mass of a billiard ball is 34 g. find the velocity of the second ball after the collision
An object is placed at a distance of 28 cm from a thin convex lens. The lens has a focal length of 9 cm. what are the values of the image distance and lateral magnification
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