The case of plessy v. ferguson, which affirmed the system of segregation, was subsequently overturned in which of the cases listed below?

select one:
a. tinker v. des moines
b. district of columbia v. heller
c. marbury v. madison
d. brown v. board of education

Four objects are being tested to see how they are affected by fluid friction. object w has a surface area of 4.5 cm2, object x has a surface area of 2.5 cm2, object y has a surface area of 6.2 cm2, and object z has a surface area of 3 cm2. which object would experience the most fluid friction?

Give your knowledge of these things in your paper, you will compare and contrast analog and digital signals to determine which is more reliable for encoding and transmitting information. you’ll compare these features: signal shape numerical values for signal measurements amount of data that can be transmitted energy requirements privacy and security (ability of the signal to be encoded in a secret code) clarity of signal in the space provided, write down what you already know about any of these features. if you’re not sure, write down questions you might have about the features.

The ph is the a.independent variable b.the dependent variable c.control group