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You are traveling on a plane. The velocity of the plane with respect to the air is 140 m/s due east. The velocity of the air with respect to the ground is 31.0 m/s at an angle of 30 degrees west of due north. What is the speed of the plane with respect to the gound? What is the heading of the plane with respect to the ground? (let 0 degree represent due north, 90 degree represents due east) How far east will the plane travel in 1 hour?
Cliff and Will support the board at each end so that it is horizontal. What force does Will apply to the board
TV channel 3 (VHF) broadcasts at a frequency of 55.0 MHz. TV channel 23 (UHF) broadcasts at a frequency of 548 MHz. Find the ratio (VHF/UHF) of the wavelengths for these channels
Unpolarized light is incident on a system of 4 polarizers. Where the preferential direction of the second is 20 degrees with respect to the first, What is the intensity of the transmitted light
Sound 1 has an intensity of 35.0 W/m^2. Sound 2 has an intensity level that is 2.7 dB greater than the intensity level of sound 1
A 300 kg elevator is being pulled upwards by a steel cable at a constant velocity. What is the net force on the elevator
A disk drive plugged into a 120V outlet operates on a voltage of 12V. Find the number of turns on the secondary coil
A polar bear starts at the North Pole. It travels 1.0 km south, then 1.0 km east, then 1.0 km north, What was the bear's average speed
In a Compton scattering experiment, an x-ray photon scatters through an angle of 17.4° from a free electron that is initially at rest. Calculate the wavelength of the incident photon
A 0.145- kg baseball traveling 34.50 m/s is stopped in 0.183 s by a catcher's mitt. What is the average force on the catcher's mitt
A long, thin metal tube of cross-sectional area 1.65 cm2 is sealed into the top of a hollow cube of edge length 0.145 m. What is the weight of the water
Two point charges Q1 = 3.6 µC and Q2 = 8.0 µC are initially very far apart. They are then brought together, How much work does it take to bring them together
If a index card is 3inx5in and another is 5in x7in find the conversion factor by dividing the value in cm/in. Calculate the area of both index cards
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