(I really need help ASAP please!! this is for science her is the problem) You push on an object with an applied force. What is the "reaction" force to your push?
A) the object being pulled by Earth
B)the object pushing back on you
C)the object moving forward
D)the object being lifted up

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

The flow rate of air through a through a pipe is 0.02 m5/s. a pitot static tube is placed in the flow. the radius of the pitot static tube is 1 mm. assuming the flow to be steady and the air to be at 300k, calculate the difference in total and static pressure if the diameter of the pipe is: (a) d 0.1 m d 0.05 m (c) d 0.01 m

Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.