4. How many board feet are there in thirty 2" x 10" X 15' joists? a. phenolic resin
b. False
c. 3
d. 750

Keneila is attempting to ski down a 20 m high friction free hill for the first time. she has a speed 10 m/s at the top. what is her kinetic energy when she is a the bottom, 20 m ? (a)2500 j (b)9800 j (c)12300 j (d)3100j (e)15000j

1400 kg car has a speed of 27 m/s. if it takes 7 s to stop the car, what is the impulse and the average force acting on the car?

Acompound machine is also called a machine. a. force b. simple c. complex d. directional