Aperson pushes on a 57-kg refrigerator with a horizontal force of 267 n; the - sign indicates that the force points in the +x direction. the coefficient of static friction is 0.65. (a) if the refrigerator does not move, what are the magnitude and direction of the static frictional force that the floor exerts on the refrigerator? (b) what is the magnitude of the largest pushing force that can be applied to the refrigerator before it just begins to move?
Answers: 3
Physics, 22.06.2019 09:00
Atelevision set that has been running for a while heats up even the air around it. which two laws of thermodynamics could be used to analyze this scenario
Answers: 1
Physics, 22.06.2019 19:50
The heater element of a 120 v toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. the resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10-6 ω·m. the toaster is operated at a voltage of 120 v. (a) what is the power drawn by the toaster? (b) if the cost of electricity is 12 ¢ per kilowatt-hour, and it takes 2 minutes to toast bread, how much does it cost for toasted bread? (c) when the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to it’s resistivity when at operating temperature? explain.
Answers: 3
Physics, 22.06.2019 20:20
Consider a file currently consisting of 200 blocks. assume that the file control block (and the index block in the case of indexed allocation) is already in memory. calculate how many disk i/o operations are required for contiguous, linked, and indexed (single-level) allocation strategies, for each of the conditions listed below. in the contiguous-allocation case, assume that there is not room to grow at the beginning but there is room to grow at the end. also assume that the block information to be added is stored in memory.
Answers: 3
Physics, 22.06.2019 20:30
You are doing a science experiment with a fahrenheit thermometer. your data must be in degrees celsius. if you measure a temperature of 125°f, what is this temperature in degrees celsius
Answers: 1
Aperson pushes on a 57-kg refrigerator with a horizontal force of 267 n; the - sign indicates that...
History, 03.12.2019 00:31
Chemistry, 03.12.2019 00:31
Chemistry, 03.12.2019 00:31
Law, 03.12.2019 00:31
English, 03.12.2019 00:31
Computers and Technology, 03.12.2019 00:31
Mathematics, 03.12.2019 00:31
Computers and Technology, 03.12.2019 00:31