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Mrs.T boards plane A and her class boards plane B. The two airplanes leave the airport at the same time. Mrs. T's plane is flying at a heading of 120 degrees and the class plane is traveling at 320 degrees. If the planes travel at the rates of 700 and 600 miles per hour, respectively, how far apart are they after an hour? If possible use law of sines or law of cosines
A railroad car of mass 3.0x10^4 kg moving at 4.00 m/s collides and couples with two coupled railroad cars, what is the speed of the three coupled cars after the collision
Earth's Atmosphere It is found experimentally that the electric field in a certain region of Earth's atmosphere is directed vertically down. At an altitude of 270 m the field has magnitude 60.0 N/C; at an altitudeof 170 m, the magnitude is 100 N/C..
the data represents the resistance R of a thermistor in Ohms as a function of tempeature T in kelvin make a graph of the natural logarithm of the resistance ln(R) versus the inverse of the temperature, 1/T and determine the constants Ro and B in R..
An automobile engine with an efficiency 0.21 dumps heat to the environment at the rate of 460 kW. What's its mechanical power output in W? What's its mechanical power output
Two identical probes are sent along the same path toward a neutron star. A neutron star is very dense, packing as much as 2 solar masses into a sphere with a radius on the order of 10 km. At the moment shown, the two probes are 59.7 km and 133 km ..
A friend buys a used pickup truck that comes complete with a CB radio. However, the antenna is broken off, How long should you make the rod
Light of wavelength 418 nm is incident normally on a film of water 1.0 µm thick. The index of refraction of water is 1.33. What is the wavelength of the light in the water
A beam of electrons is accelerated through a potential difference of 10 kV before entering a region having uniform electric and magnetic fields that are perpendicular to each other and perpendicular to the direction in which the electron is moving. I..
The distance between a loudspeaker and the left ear of a listener is 1.60 m. compute the time required for sound to travel this distance if the air temperature is 20° C.
A monatomic ideal gas ( = 1.67) is contained within a box whose volume and pressure are 3.1 m3, Find the speed of sound in the gas
q1. an object is 14.4 cm from the surface of a reflective spherical christmas tree ornament 8.04 cm in diameter.what is
Your engineering firm is asked to specify the maximum load for the elevators in a new building. Each elevator has mass 440kg when empty and maximum acceleration 2.27m/s^2 . The elevator cables can withstand a maximum tension of 20.7kN before break..
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