- Chemical, potential energy is stored in a battery.
- The negative end of a battery is connec...
Physics, 26.03.2020 21:31, selenaK9514
- Chemical, potential energy is stored in a battery.
- The negative end of a battery is connected to a wire.
- The wire loops numerous times around an iron nail.
- The wire returns to the positive end of the battery.
What happens to the nail?
A) It gains a negative charge.
B) It gains a positive charge.
C) It repels other iron items, such as paperclips.
D) It attracts other iron items, such as paperclips.
Answers: 1
Physics, 21.06.2019 22:00, sophiamoser
In a wind tunnel the speed changes as the cross sectional area of the tunnel changes. if the speed in a 6' x 6' square test section is 100 mph, what was the speed upstream of the test section where the tunnel measured 20' x 20'? use conservation of mass and assume incompressible flow. conservation of mass requires that as the flow moves through a path or a duct the product of the density, velocity and cross sectional area must remain constant; i. e., that ova-constant. a model is being tested in a wind tunnel at a speed of 100 mph if the flow in the test section is at sea level standard conditions, what is the pressure at the model's stagnation point? (a) the tunnel speed is being measured by a pitot-static tube connected to a u- tube manometer. what is the reading on that manometer in inches of water? (b) at one point on the model a pressure of 2058 psf is measured. what is the local airspeed at that point?
Answers: 2
Physics, 22.06.2019 18:30, kingindoraptor
Against his financial advisor's advice, frank has decided to invest his money in some risky stocks because he once made quite a bit of money in the stock market. his decision illustrates a. the representativeness heuristic b. overconfidence c. the availability heuristic d. confirmation bias select the best answer from the choices provided
Answers: 3
Mathematics, 21.07.2019 19:50
Mathematics, 21.07.2019 19:50
Mathematics, 21.07.2019 19:50
English, 21.07.2019 19:50
Computers and Technology, 21.07.2019 19:50
Mathematics, 21.07.2019 19:50