Before opening the tank valve on an oxygen cylinder which is connected to an oxy-fuel cutting torch, you should turn the diaphragm screw a. all the way out. b. '/2 of the way out. c. /s of the way out. d. all the way in. a b g区 10. the primary purpose of peening as welding progresses is to a. condition the surface for further welding. b. relieve stresses.

An experiment is designed to test the relationship between the initial height of a basketball before it is dropped to the height of its rebound bounce. the height of the rebound bounce is measured using a scale positioned behind the ball. in the above experiment, which condition would not be controlled? a). the starting height of the ballb). the surface the ball bounces on c). the type of ball d). the method to measure the rebound height of the ball

Aforce of 240.0 n causes an object to accelerate at 3.2 m/s2. what is the mass of the object?

The average density of the planet uranus is 1.27 103 kg/m3. the ratio of the mass of neptune to that of uranus is 1.19. the ratio of the radius of neptune to that of uranus is 0.969. find the average density of neptune.