Physics, 31.10.2019 06:31 manasangreddy2921
Sally travels by car from one city to another. she drives for 26.0 min at 83.0 km/h, 52.0 min at 41.0 km/h, and 45.0 min at 60.0 km/h, and she spends 15.0 min eating lunch and buying gas.
what's the average speed (km/h)?
what's the total distance traveled(km)?
Answers: 2
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An engineer designs a roller coaster so that a car travels horizontally for 152 ft, then climbs 137 ft at an angle of 34.0° above the horizontal. it then moves 137 ft at an angle of 48.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)
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Physics, 22.06.2019 07:30, michaireid04
Identify the theory that can be used to explain each phenomenon. answers diffraction: wave theory interference: wave theory reflection: both particle and wave theories refraction: both particle and wave theories
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Sally travels by car from one city to another. she drives for 26.0 min at 83.0 km/h, 52.0 min at 41....
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