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A spider hangs from a strand of silk whose radius is 3.60 10-6 m. The density of the silk is 1300kg/m3. When the spider moves, waves travel along thestrand of silk at a speed of 268 m/s. Determine the mass (in kg) of the spider.
The Earth has a radius of approximately 6.37 x 10 ^ 6 meters (m). Determine the surface area of the Earth in square kilometers
When n moles of an ideal gas is allowed to expand from an initial volume of 10 m3 at a constant temperature T the work done is equal to : - nRT ln 4, What was the final volume of the gas
Derive the speed of a satellite in a circular orbit of radius R about planet of mass M, show the connection between v and T (orbital period)
You're a production engineer in a cookie factory, where mounds of dough drop vertically onto a conveyer belt at the rate of one 11g mound every 2 seconds, What average force must the mechanism exert on the belt
Wxe consider the harmonic oscillator in one-dimension. Write down the lowest energy (ground state) wavefunction. Verify that the wavefunction is normalized.
Your medieval history class is constructing a trebuchet, a catapult-like weapon for hurling stones at enemy castles, Find an expression for the angle that will maximize the range of a projectile launched with speed from height above level ground
Light from a sodium lamp (lamda=589 nm) illuminates two narrow slits. The fringe spacing on a screen 150 cm behind the slits is 4.0 mm. What is the spacing (in mm) between the two slits
a glass rod that has been charged to 17.0nc touches a metal sphere. afterward the rods charge is 3.0nc . how many
suppose a flat roof has a surface area of 1.38000times102 m2. presume the air inside the building and under the roof is
you are piloting a small plane that can maintain an air speed of 136.5 kt knots or nautical miles per hour and you want
When 5.30* 10^5 J of heat is added to a gas enclosed cylinder fitted with a light frictionless piston maintained at atmospheric pressure, estimate the work done by the gas
A certain photon after being scattered from a free electron at rest moves at an angle of 120° with respect to the incident direction. what is the wavelength of the scattered photon
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