Which of the following is a testable hypothesis?
a) high levels of salt in soil will probably affect plant growth by either making the plants grow better or causing the plants to die.
b) the growth rate of an e. coli bacterial colony will increase as temperature increases from 10 °c to 50 °c.
c) is there a proportional relationship between the number of pimples a person gets and the amount of chocolate he/she eats?
d) hurricanes look larger in images taken by an orbiting satellite than in video footage taken by weather reporters standing on earth's surface.

Observations show that interstellar clouds can have almost any shape and

The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?

Asquare 1m x 1m plate is shown below. all four of its edges are kept at 0 co. at t=0the temperature distribution is given by: y xtsins n75)=.a) using separation of variables determine the temperature distribution t(x,y,t)along the plate at any time t.b) discretize the heat conduction equation +=22222 txtusing a second-order centered difference scheme for the two second derivatives and a first-order forward euler scheme for the first derivative. using von neumann stability analysis, determine the stability criterion for the proposed discretization scheme in terms of , hand t. solve for the maximum allowable time step tmax