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In a certain binary-star system, each star has the same mass which is 9.6 times of that of the Sun, and they revolve about their center of mass. The distance between them is the 5.5 times the distance between Earth and the Sun. What is their period of revolution in years? Please use the numbers given!
A hand-driven tire pump has a 2.50 cm diameter piston and a maximum stroke of 24.0 cm. What average force do you exert on the piston
A block that has a mass M = 4.25 kg is hanging at rest on a light string. A projectile with a mass m = 250 g moving horizontally strikes M and sticks to it. The block and its projectile swing up and the center of mass rises a distance h = 12.0 cm. Th..
A gardener pushes a box of tools across a driveway by applying a 20.5- N force that pushes downward at an angle of 34.9 o with respect to the horizontal
The human body has a surface area of approximately 1.8 m^2, a surface temperature of approximately 30 degrees celsius, how many photons per second does the body emit
You have a thin lens with a focal point at 1.7 cm. If you place a candle stick at a distance of 3.9 cm from the center of the lens, calculate the distance of the resulting image from the lens
A loudspeaker of mass 23-{rm kg} is suspended a distance of h = 1.80- {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.10- {rm m}. What is the tension T in each of cables.
A particle of charge +14 µC and mass 3.54 10-5 kg is released from rest in a region where there is a constant electric field of +490 N/C
An ideal gas initially at 20°C and 199 kPa has a volume of 3.40 L. It undergoes a quasi-static, Find the heat added to the gas during the expansion
A closely wound rectangular coil of 100 turns has dimensions of 20.0{\rm cm} by 50.0{\rm cm}. What is the average emf induced in the coil
What is the Fourier transform of the 2-term wavelet f(t) = (4,2,1). Calculate this on paper (show your work) and graph the amplitude and phase spectra for this wavelet.
Students hypothesized that by running the electric current through the wire of the apparatus shown here, they could cause the non-magnetic nail to exhibit magnetic properties. What would be a reasonable way to test this.
An object falls off of a pier and into the ocean (sea water) where it displaces a total volume of 3.6 cubic meters of sea water. What is the buoyant force acting on the object
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