Answers: 3
Physics, 22.06.2019 04:30
The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.
Answers: 1
Physics, 22.06.2019 12:20
Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?
Answers: 2
Physics, 22.06.2019 17:30
Convection currents are caused by differences in what two things?
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
A mass of 3.0 kg rests on a smooth surface inclined 34° above the horizontal. It is kept from slidin...
Arts, 16.12.2020 02:20
Mathematics, 16.12.2020 02:20
Mathematics, 16.12.2020 02:20
Mathematics, 16.12.2020 02:20
SAT, 16.12.2020 02:20
Chemistry, 16.12.2020 02:20
Mathematics, 16.12.2020 02:20
Mathematics, 16.12.2020 02:20
Computers and Technology, 16.12.2020 02:20
History, 16.12.2020 02:20
Social Studies, 16.12.2020 02:20
Biology, 16.12.2020 02:20
Mathematics, 16.12.2020 02:20