Which wave interaction is responsible for echoes?
A. Interference
B. Reflection
C....
Answers: 3
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 05:50
Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32Γ10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^β1 mol^β1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022Γ10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?
Answers: 3
Physics, 22.06.2019 12:20
What is the coefficient of kinetic friction ΞΌk between the block and the tabletop?
Answers: 1
Physics, 22.06.2019 13:20
Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.
Answers: 1
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