The diagram shows apparatus that can be used to make a magnet. * 15)
(1/1 Points)
power supply
metal
coil
Which metal and which power supply are used to make a permanent magnet?
metal
power supply
A
iron
6 Va. c.
6Vd. c.
00
iron
C
steel
6 Va. c.
D
steel
6 Vd. c.

An engineer designs a roller coaster so that a car travels horizontally for 152 ft, then climbs 137 ft at an angle of 34.0° above the horizontal. it then moves 137 ft at an angle of 48.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)

By what primary heat transfer mechanism does the sun warm the earth?

In which situation is the acceleration of a car negative? question 5 options: a)the velocity of a car was 75 km/hr over 4 hours. b)the velocity of a car reduced from 50 km/hr over one minute. c)the velocity of a car increased from 40 km. h to 75 km/h over 15 minutes. d)the velocity of a car was 45 km/hr at 2: 00pm and at 4: 00pm its velocity was 85 km/ht.