An electric current is created in a long thin wire. how will increasing the current and changing the direction of the current effect the direction that a compass placed under the wire will point?
a. it compass will spin continuously.
b. the compass will flip exactly 180 degrees.
c. the compass will spin exactly 360 degrees.
d. the compass will not react and still point north.

Jasmine is diving off a 3-meter springboard. her height in meters above the water when she is x meters horizontally from the end of the board is approximated by the equation h=-x^2+3x+3. what is the maximum height jasmine will reach on her dive?

Why is the use of carbon-14 limited

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.