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Mary needs to row her boat across a 104-m-wide river that is flowing to the east at a speed of 2.65 m/s. Mary can row with a speed of 1.53 m/s. If Mary rows straight north, where will she land of the point that is straight across the river?
a he-ne laser cavity has a cylindrical geometry with length 30cm and diameter 05cm. the laser transition is at 633nm
Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10?2cm , mounted coaxially within a cylindrical anode with a radius of 0.5580cm, Find its speed vfinal when it strikes the anode
Radio waves of wavelength 104 m from a galaxy reach a radio telescope by two separate paths, Find the height of the radio telescope dish above the water
a gymnast is performing a floor routine. In a tumbling run she spins through the air, How much time does this maneuver take
A planet orbits a star once every 2.99 107 s in a nearly circular orbit of radius 1.42 1011 m. With respect to the star, determine the angular speed of the planet
A simple harmonic oscillator has a potential energy of 25x2 Joules, a kinetic energy of 0.5v2 Joules where x is the displacement in meters and v the instantaneous velocity in m/s. determine the maximum instantaneous velocity
The angular momentum of a flywheel having a rotational inertia of 0.125 kgm2 decreases from 3.0 to 2.0 kgm2/s in a period of 1.5 s. How much work was done on the wheel
dnp dinitrophenol is a compound that allows hydrogen ions to leak across a membrane. this leakage prevents the
A ball having amass of 150 g strikes a wall with aspeed of 4.8 m/s and rebounds withonly 50% of its initial kinetic energy. What is the magnitude of the impulse on the wall from the ball
a disk of 1.6 g is made of zinc. the atomic number of zinc is 30 and the atomic mass is 65.39 gmole.a how many protons
1. the light of incidents under the angle 60deg from vacuum onto transparent medium. the anglr of refraction is 45deg.
In a 1.32T magnetic field directed vertically upward, a particle having a charge of magnitude 8.00?C and initially moving northward at 4.78km/s is deflected toward the east. What is the sign of the charge of this particle
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