The centripetal acceleration of the race car is 40500 mi/hr^2.
This can be calculated as the square of the velocity v divided by the radius r of the circular track:
a = v^2 / r
Substituting the given values of velocity v = 135 mi/hr and radius r = 0.450 miles, the centripetal acceleration a of the car is therefore
a = (135 miles/hour)^2 / (0.450 miles)
= 40500 miles/hour^2.
Answer:
C) is the part of the strand that is added first
Explanation:
DNA replication occur by a semiconservative model. During DNA replication the strands of DNA are unbounded by DNA helicase and stabilized by single cell binding proteins.
The primase enzyme build the short primers and DNA polymerase synthesize the new strand of DNA. One restriction for DNA polymerase is that it can only synthesize the DNA strand in 5' to 3' direction. That's why 5' end of DNA is always synthesized first.
The leading strand is synthesized continuously and lagging strand is synthesized in fragments known as okazaki fragments because of DNA polymerase ability to synthesize the strand in only 5' to 3' direction. These fragments are joined by DNA ligase and RNA primers are also replaced by DNA polymerase.
Answer:
Vascular system, in plants, assemblage of conducting tissues and associated supportive fibres. Xylem tissue transports water and dissolved minerals to the leaves, and phloem tissue conducts food from the leaves to all parts of the plant.
