Physics, 24.06.2019 22:30 crickel40pa8sxe
One group of students is investigating the properties of charged objects. their observations are listed below. when two positively charged objects are brought close to each other, they push each other away. when two negatively charged objects are brought close to each other, they push each other away. when a positively charged object is brought close to a negatively charged object, they pull toward each other. the experiment was repeated by several students using different charged objects. the results were the same. based on the investigations, which of these theories would the students most likely propose? similar charges attract similar charges repel positive charges attract all charges negative charges attract all charges
Answers: 1
Physics, 22.06.2019 19:30
Refrigerant-134a flows through a carnot heat pump cycle at 0.5 kg/s. it is known that the maximum absolute temperature in the cycle is 1.1 times the minimum absolute temperature, and the net power input to the cycle is 2.5 kw. if the refrigerant changes from a saturated vapor to a saturated liquid during the heat rejection process, determine the maximum magnitude of the enthalpy of vaporization for this process in kj/kg (with 3 significant figures).
Answers: 3
Physics, 23.06.2019 00:50
Mark creates a graphic organizer to review his notes aboutelectrical force.which labels belong in the regions marked x and y?
Answers: 1
Physics, 23.06.2019 02:50
You are your friend move a new refrigerator into his kitchen. you apply a horizontal force of 252 n in the negative x direction to try and move the 56 kg refrigerator. the coefficient of static friction is 0.61. (a) how much static frictional force does the floor exert on the refrigerator? give both magnitude (in n) and direction. magnitude n direction (b) what maximum force (in n) do you need to apply before the refrigerator starts to move?
Answers: 1
One group of students is investigating the properties of charged objects. their observations are lis...
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