A hiker sets out to travel 1.50 km at 45º northwest from her original position. She hikes 2.0 km directly west. What are the components of the vector that will take her from there to her destination? x= +0km, y=+1.5km
x=-0.94km, y=+1.06km
x= +2.0km, y= +0.5km
x= -1.0km, y=+0.5km
x= +0.94km, y=+1.06km

Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.

Find the magnetic field a distance r from the center of a long wire that has radius a and carries a uniform current per unit area j in the positive z direction.

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.