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A 5.75 kg mass explodes into three pieces. A 2.25 kg piece moves north at 6 m/s; a 1.25 kg piece moves east at 4 m/s. Find the total energy release by the explosion.
question a transformer has n1 350 turns and n2 2 000 turns. if the input voltage is ?v t 170 v cos wt what rms
An automobile has a total mass of 1700 kg. It accelerates from rest to 40 km/h in 10 s. Assume each wheel is a uniform 32 kg disk. find the total kinetic energy of each wheel
a 1.5 kg ball and a 2.2 kg ball are connected by a 1.0 m long rigid massless rod. the rod is rotating cw about its
Place the light source with the object at 0 cm on the optical rail. Where is the position of the image?
Steel rails 25.0m long are laid end to end with gaps between them to account for thermal expansion. Part A If the track is laid when it's 18 degrees C, how large should the gaps be to allow temperatures up to 39 degrees C?
a star has an apparent magnitude of -1.5 and an absolute magnitude of 1.4 giving it an m-m value of -2.9. if the value
It is necessary to determine the specific heat of an unknown object. The mass of the object is 170.0 g. Find the specific heat of the object
The mass of the sled and its two riders in the figure below is 300 kg. find the magnitude of the centripetal force that acts on the sled
find the transformation matrix r that describes a rotation of 90 degrees about an axis from the origin through the
A hydrogen atom in its ground state is excited to the n = 5 level. It then makes a transition directly to the n = 2 level before returning to the ground state. What are the wavelengths of the emitted photons
The mass of a disk is 0.5 kg and it's radius is 15 cm. Calculate the moment of inertia for the disk if it is pivoted about an axis through the center of mass of the disk.
The uncertainty in an electron's position is 0.18 nm. What is the kinetic energy of an electron whose momentum is equal to this uncertainty
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