Physics, 29.06.2019 07:30 rubincain698
Disregarding air resistance, what is the speed of a ball dropped from 12 feet just before it hits the ground? (use 1 ft = 0.30 m, and use g = 9.8 m/s2.) 2.4 m/s 8.4 m/s 10.8 m/s 15.3 m/s
Answers: 1
Physics, 22.06.2019 05:20
A3.9 g aluminum foil ball with a charge of +4.1Γ10β9 c is suspended on a string in a uniform horizontal eβ field. the string deviates to the right and makes an angle of 30β with the vertical. part a part complete what information about the eβ field can you determine for this situation? what information about the field can you determine for this situation? only the magnitude of eβ only the direction of eβ both the magnitude and the direction of eβ none of the above previous answers correct part b determine the magnitude of the electric field. express your answer with the appropriate units. e e = nothing nothing request answer part c determine the direction of the electric field. determine the direction of the electric field. to the right to the left away from you toward you
Answers: 3
Physics, 22.06.2019 12:00
Asolid round steel rod 6.25 mm in diameter and 375 mm long is rigidly bonded to the end of solid square brass rod 25 mm on a side and 300 mm long. the geometric axes of the bare are along the same line. an axial tensile force of 5.4 kn is applied at the extreme ends of the assembly. for steel e = 200 gpa and for brass e = 90 gpa. determine the total elongation for the assembly.
Answers: 1
Physics, 22.06.2019 16:30
He latent heat of vaporization for ethyl alcohol is 854 j/g. the amount of energy, rounded to the nearest whole number, needed to change 5.20 grams of ethyl alcohol from a liquid to a gas is
Answers: 2
Physics, 22.06.2019 17:10
Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up
Answers: 2
Disregarding air resistance, what is the speed of a ball dropped from 12 feet just before it hits th...
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