In a new lab experiment, two parallel vertical metal rods are separated by l = 1.1 m . a r = 2.0-ω resistor is connected from the top of one rod to the top of the other. a m = 0.10-kg horizontal metal bar falls between the rods and makes contact at its ends with the rods. a b→ field of 0.50×10−4 t points horizontally between the rods. the bar should eventually reach a terminal falling velocity (constant speed) when the magnetic force of the magnetic field on the induced current in the bar balances the downward force due to the gravitational pull of the earth. part a part complete develop in symbols an expression for the current through the bar as it falls. express your answer in terms of the variables r, b, l, and terminal falling velocity v. i i = blvr submitprevious answers correct part b part complete determine in symbols an expression for the magnetic force exerted on the falling bar (and determine the direction of that force). remember that an electric current passes through it, and the bar is falling in the magnetic field. express your answer in terms of the variables r, b, l, and terminal falling velocity v. fbonbar f b o n b a r = b2l2vr submitprevious answers correct part c part complete determine the final constant speed of the falling bar for the given values. express your answer with the appropriate units. vt v t = 6.5×108 ms submitprevious answers correct part d is this process realistic? is this process realistic? no yes
Answers: 3
Physics, 22.06.2019 02:00
Which statements about tornadoes are true? check all that apply. (a) about 12,000 tornadoes hit the united states every year. (b) a tornado looks like a funnel. (c) tornadoes are deadly atmospheric storms that cause millions in damages each year. (d) tornadoes can reach wind speeds of more than 300 miles per hour. (e) kansas is the state with the most tornadoes. (f) you will always notice a funnel before a tornado strikes.
Answers: 2
Physics, 22.06.2019 08:50
The experiment was repeated many years later but the gases were mixed in a different type of container. a white solid was obtained which was xenon fluoride. predict whether you think 1) krypton and 2) radon will react with fluorine. explain reasons for your predictions
Answers: 3
Physics, 22.06.2019 16:30
3. a lunar exploration vehicle was created by a research team. it weighs 3,000 kg on the earth. it needs an acceleration of 10 m/s2 on the moon. in order to have the same acceleration, what will be the net force acting on the vehicle on the earth?
Answers: 2
In a new lab experiment, two parallel vertical metal rods are separated by l = 1.1 m . a r = 2.0-ω r...
Mathematics, 05.12.2020 21:50
Mathematics, 05.12.2020 21:50
English, 05.12.2020 21:50
Chemistry, 05.12.2020 21:50
Mathematics, 05.12.2020 21:50
Mathematics, 05.12.2020 21:50
Social Studies, 05.12.2020 21:50
Biology, 05.12.2020 21:50
Mathematics, 05.12.2020 21:50
Mathematics, 05.12.2020 21:50