An empty car on a steep street rolls downhill and collides with a concrete wall. The car is damaged, but the concrete wall isn’t. What’s true about the strength of the forces in this situation? A. The force on the car was greater because it was moving
B. The force on the wall was greater because it wasn't damaged
C. The forces exerted by the car and wall were equal
D. No forces were exerted in this collision because the car was empty

What precautions should you take to prevent injuries when dealing with heavy loads?

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg.k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m.k

Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?