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A certain part of aircraft engine has a volume of 1.3ft3.
(a) Find the weight of the piece when it is made of iron.
(b) If the same piece is made of aluminum, find the weight anddetermine how much weight is saved by using aluminum instead of iron.
A long, solid insulating cylinder of radius R = 1 mm has a uniform volume charge density and a total linear charge density of lambda = 3.6X10^9 C/m. what is its speed just before it impacts the surface
A converging lens with a focal length of 6.20cmforms an image of a 3.00mm -tall real object that is to the left of the lens. Where are the object and image located
Estimate the change in enthalpy and entropy when liquid ammonia at 270oK is compressed from its saturation pressure of 328 kPa to1,200 kPa. For saturated liquid ammonia at 270oK, Vl=1.551x10-3 m3kg-1, and \(\beta=2.095x10-3K-1.\)
a 100g marble (modeled as a solid sphere with radius 2cm) rolls without slipping down a ramp. How tall is the ramp
A professor's office door is 0.98m wide, 2.2mhigh, 4.0cm thick; has a mass of 29kg , and pivots on frictionless hinges. What is the moment of Inertia on the door
You are driving a car at the 25-mi/h speed limit when you observe the light at the intersection 68 m in front of you turn yellow. How fast were you going as you exited the intersection
Two spheres with masses m1 = 820 kg and m2 = 830 kg are separated by 0.230 m. What is the net gravitational force from them on a 3.0 kg sphere located 0.161 m from m1 and 0.069 m from m2? Use a + sign if the direction is towards m2 and a - sign if..
A balloon filled with dyed water is placed in a pouch attached to the hose, which is then stretched through the width of the room. Assume that the stretching of the hose obeys Hooke's law with a spring constant of 53.0 N/m.
A skier with a mass of 63 kg starts from rest and skis down an icy slope that has a length of 50 m at an angle of 32 degrees with respect to the horizontal. Iillustrate what is the speed of the skier at the bottom of the slope?
Dolphins and other sea creatures can leap to great heights by swimming straight up and exiting the water at a high speed. What is the force of the water on the dolphin as it is coming to rest
A 500? resistor and a 240mH inductor are connected in series with an ac generator with an rms voltage of 17.0V, compute the rms current in this circuit
The wavelength of the x-radiation we use in our diffractometer is 1.54Angstroms. What is the ratio of the energy of these x-ray photons to the energy in the most energetic of visible light? Given this discuss why x-rays are considered dangerous to pe..
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