Physics, 26.06.2019 23:40 addisonwiles
You are working as an intern for a meteorological laboratory. you are out in the field taking measurements with a device that measures electric fields. you measure the electric field in the air immediately above the earth's surface to be 119 n/c directed downward. (assume the radius of the earth is 6.37 âś• 106 m.) (a) determine the surface charge density (in c/m2) on the ground. (b) imagine the surface charge density is uniform over the planet. determine the charge (in c) of the whole surface of the earth. (c) determine the earth's electric potential (in v) due to the charge found in (b). (d) determine the difference in potential (in v) between the head and the feet of a person 1.50 m tall. (ignore any charges in the atmosphere.) v
Answers: 3
Physics, 22.06.2019 03:50
Aspecimen of oil having an initial volume of 580cm^3 is subjected to a pressure increase of 4.0 mpa, and the volume is found to decrease by 0.40 cm^3. (a) what is the bulk modulus of the material? (b) what is the compressibility of the material?
Answers: 1
Physics, 22.06.2019 20:40
Abasketball star covers 2.65 m horizontally in a jump to dunk the ball. his motion through space can be modeled precisely as that of a particle at his center of mass. his center of mass is at elevation 1.02 m when he leaves the floor. it reaches a maximum height of 1.90 m above the floor and is at elevation 0.910 m when he touches down again. (a) determine his time of flight (his "hang time"). (b) determine his horizontal velocity at the instant of takeoff. (c) determine his vertical velocity at the instant of takeoff. (d) determine his takeoff angle. (e) for comparison, determine the hang time of a whitetail deer making a jump with center-of-mass elevations yi = 1.20 m, ymax = 2.45 m, and yf = 0.750 m.
Answers: 1
Physics, 22.06.2019 22:00
Four friends, a, b, c, and d are standing varying distances away from a speaker which is producing sound waves.
Answers: 2
Physics, 23.06.2019 00:30
Diego kicks a soccer ball from the end line. his fellow students time and mark the soccer ball as it moves down the field. the graph represents the ball's progress. based on the graph, during what time is the velocity constant and positive?
Answers: 1
You are working as an intern for a meteorological laboratory. you are out in the field taking measur...
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