The diagram below shows the heating of an unknown substance (it is not water). Its melting point is? The diagram below shows the heating of an unknown substance. (It is NOT water). Its melting point is: a. between 35⁰C and 70⁰C

b. 70⁰C

c. between 70⁰C and 140⁰C

d. 140⁰C

How much work would a child do while puling a 12-kg wagon a distance of 3m with a 22 n force directed 30 degrees with respect to the horizontal? (a) 82j (b) 52j (c) 109j (d) 95j

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.)

The mantle is made up of which structural zones?