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Matt is sailboarding northeast across the river with a velocity of 10 m/s relative to the water. The river current is moving the water north at a velocity of 3 m/s downstream. If the angle between 81the relative velocity of the sailboard and the river current is 30°, what is the resultant or true velocity of the sailboard?
The electric field has a constant value of 3.30 103 V/m and is directed downward. Find the potential at the following points
After the Sun exhausts its nuclear fuel, its ultimate fate may be to collapse to a white dwarf state. Calculate the average density of the white dwarf
A ray of light is incident on a flat surface of a block of cubic zirconia that is surrounded by water. obtain the angle of reflection
Find the total capacity, total charge and the voltage across C1 and C2 given C1= 15nF and C2= 25nF are connected in parallel across a 200 volt supply
Messages reach at random to be sent across a communications link with a information rate of 9600 bps. The link is 70 percent utilized, and the average message length is 1000 octets.
A uniform electric field of magnitude 380 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 2.60 cm. (a) What is the work done by the field on the electron? J (b) What is the change in..
A heat engine has a maximum possible efficiency of 0.800. If it operates between a deep lake with a constant temperature of 287.0 k and a hot reservoir, what is the temperature of the hot reservoir?
A flight attendant pulls hero 70 N flight bag a distance of 253 m along a level airport floor at a constant velocity. The force she exerts is 40N at an angle of 52.0 degrees above the horizontal.
Beats of frequency 4Hz are heard when a tuning fork of frequency 1000Hz and a vibrating wire are sounded together. What is frequency of the wire.
A 2.3A current is flowing in a 25H inductor. A switch is opened, interrupting the current in 1.0ms. Find the induced emf in the inductor
What is the final temperature of the water and zinc.
at what distances from the speaker do you hear a minimum sound intensity.
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