Physics, 22.04.2021 16:10 jade611135
A large plastic cylinder with mass 30.0 kg and density 395 kg/m3 is in the water of a lake. A light vertical cable runs between the bottom of the cylinder and the bottom of the lake and holds the cylinder so that 30.0% of its volume is above the surface of the water. What is the tension in the cable?
Answers: 2
Physics, 21.06.2019 21:00
State the right hand rule of the direction of magnetic field in a conductor carrying current
Answers: 1
Physics, 21.06.2019 22:20
Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage
Answers: 2
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 20:30
Why does karst topography exist in some geographic location? a. few climates have enough oxygen b. most regions have rock layers other than limestone c. in most regions, the soil is too thin d. the water is too acidic enough in most places
Answers: 2
A large plastic cylinder with mass 30.0 kg and density 395 kg/m3 is in the water of a lake. A light...
Biology, 02.11.2020 20:00
Business, 02.11.2020 20:00
Computers and Technology, 02.11.2020 20:00
Engineering, 02.11.2020 20:00
Mathematics, 02.11.2020 20:00
Biology, 02.11.2020 20:00
Mathematics, 02.11.2020 20:00
English, 02.11.2020 20:00
English, 02.11.2020 20:00
Mathematics, 02.11.2020 20:00
Computers and Technology, 02.11.2020 20:10
Mathematics, 02.11.2020 20:10