Which of the following is not a major function of the roots?
a. development of root pressure that drives movement
b. providing a membrane in which osmosis moves water across
c. uptake of nutrients
d. photosynthesis

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

What are the necessary conditions for fusion?

Asmall 12.00g plastic ball is suspended by a string in a uniform, horizontal electric field with a magnitude of 10^3 n/c. if the ball is in equilibrium when the string makes a 30 ° angle with the vertical, what is the net charge on the ball?