Physics, 28.10.2019 23:31 emmanuelmashao6704
The driver of a 1500 kg car, travelling on a highway, hits the brakes. a force of 12000 n stops the car in a distance of 64 m. how fast was the car going when the driver hit the brakes?
Answers: 1
Physics, 22.06.2019 04:00
Ametal ball with a mass of 0.028 kg is dropped from rest at a height of 1.0 meters above the ground. assuming the energy in the ball is conserved, how much kinetic energy will the ball have when it is 0.5 meters above the ground?
Answers: 1
Physics, 22.06.2019 17:20
The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b.b. at twice the distance, the magnitude of the field is 2b.c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.
Answers: 3
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 ร 10-6 ฯยทm. 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 ยข 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 itโs resistivity when at operating temperature? explain.
Answers: 3
The driver of a 1500 kg car, travelling on a highway, hits the brakes. a force of 12000 n stops the...
Mathematics, 01.02.2021 21:00
Mathematics, 01.02.2021 21:00
Mathematics, 01.02.2021 21:00
Mathematics, 01.02.2021 21:00
Mathematics, 01.02.2021 21:00
Mathematics, 01.02.2021 21:00
Physics, 01.02.2021 21:00