Physics, 29.07.2019 06:30 theresamarieuehling2
After harvesting their main crops, such as corn and wheat, many farmers plant a second crop called a cover crop. this cover crop grows during the fall and winter and is then plowed over in the spring. what is the main purpose of a cover crop? a. to get rid of excess seed rather than storing during the winter b. to provide food and shelter for birds and animals during the winter c. to prevent water runoff into other parts of the farmers' field d. to prevent erosion of the topsoil by wind and water
Answers: 1
Physics, 21.06.2019 16:10
Zirconium has an hcp crystal structure and a density of 6.51 g/cm3. (a) what is the volume of its unit cell in m3? (b) if the c/a ratio is 1.593, compute the values of c and a.
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Physics, 21.06.2019 22:30
An engineer designs a roller coaster so that a car travels horizontally for 162 ft, then climbs 127 ft at an angle of 31.0° above the horizontal. it then moves 127 ft at an angle of 46.0° 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.)
Answers: 1
Physics, 22.06.2019 01:20
Abanked road comer of radius 146 m is to be constructed. if the comer is designed for vehicles moving with a speed of 20.0 m/s, what should the banking angle be, in units of degrees?
Answers: 3
Physics, 22.06.2019 11:10
Which situation will produce the greatest change of momentum
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After harvesting their main crops, such as corn and wheat, many farmers plant a second crop called a...
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